Question

simplify 7x +4y+3(x-y)-2x

Answer 1

i have to justify my answers

Answer 2

so what have you done so far?

Answer 3

2x

Answer 4

uh, that doesn't make sense, sorry

Answer 5

7x+3x-2x=8x

Answer 6

so that is correct if only working with the x's, but probably not what your teach wants

Answer 7

no thats what i have so far

Answer 8

typically for this, they want a step by step with which property you are using that allows you to do a specific action

Answer 9

let me give you an example and it may help. 1 moment

Answer 10

+4y+3y=7y

Answer 11

Problem: \(3x+2y-4(x+y)-7y\)
Steps:
1. First I will use the distributive property to simplify -4(x+y).
\[3x+2y-4(x+y)-7y=3x+2y-4x-4y-7y\]
2. Next I use the commutative property to group like terms
\[3x+2y-4x-4y-7y=3x-4x+2y-4y-7y\]
3. Finally I combine the like terms and then use the distributive property to get rid of some negative signs
\[3x-4x+2y-4y-7y=-1x-9y=-(x+9y)\]

Answer 12

So the is the type of solution your teacher is most likely looking for. Can you attempt your problem in this way?

Answer 13

im trying give me a sec

Answer 14

please do, feel free to upload a photo if you do not wish to type it all out

Answer 15

-1x+9y

Answer 16

k im stuck

Answer 17

help what do i do next?

Answer 18

huh?

Answer 19

sorry I don't know what you did. Not your problem

Answer 20

that was my example

Answer 21

oh lol now im really confused

Answer 22

oh oh wait a sec. Wow I made a similar ex

Answer 23

no i didn't, so you are supposed to do your problem the same way I did my example above. Write out every step like I did

Answer 24

ok thanks

Answer 25

only with your posed question

Answer 26

you will not need the final distributive step I did though

Answer 27

im totally confused thanks anyway

Answer 28

@satellite73

Answer 29

where, i'm sorry, But could you use full sentences to explain why you are confused so I can assist?

Answer 30

@jim_thompson5910

Answer 31

@dan815

Answer 32

@Nnesha

Answer 33

@Loser66

Answer 34

Well here is my example again.

Example problem:
Problem: Simplify \(3x+2y−4(x+y)−7y\)
Steps:
1. First I will use the distributive property to simplify \[-4(x+y).
3x+2y−4(x+y)−7y=3x+2y−4x−4y−7y\]

2. Next I use the commutative property to group like terms
\[3x+2y−4x−4y−7y=3x−4x+2y−4y−7y\]

3. Finally I combine the like terms and then use the distributive property to get rid of some negative signs
\[3x−4x+2y−4y−7y=−1x−9y=−(x+9y)\]

Answer 35

7x+3x-2x+4y-3y

Answer 36

8x+1y

Answer 37

is that how i do it?

Answer 38

you skipped a bunch of steps and did not explain each

Answer 39

you must show every single minute step AND give full explanation in order to get full credit I would assume

Answer 40

yes but its hard im in a special class for math and reading

Answer 41

I fail to see why. You are clearly performing the steps, just not writing them down

Answer 42

literally follow the example I wrote out. That is the format of answer they are looking for

Answer 43

Does the example make sense?

Answer 44

I mean you are getting the correct answer.

Answer 45

yes but its hard im going to try again

Answer 46

just not showing your work as requested

Answer 47

What is hard? (not meant to be rude, but you have done the problem correctly. I fail to understand which part is hard.)

Answer 48

to write all the steps

Answer 49

(again, nit to be rude, but) why?

Answer 50

I am honestly curious. (I teach and I wish to fully understand the difficulty)

Answer 51

k does the first step ;lool like this

Answer 52

Maybe try a question approach. How did you go from \[7x +4y+3(x-y)-2x\rightarrow 7x+3x-2x+4y-3y\]

Answer 53

because its easier to think and solve the problem all in my head

Answer 54

ok should the first step look like this----3(x-y)*7x+4y+3(x-y)-2x=7x+4y+3x-3y-2x

Answer 55

but you are doing it in your head, why can't you write it? (i realize it seems redundant, but it's not like you are just having an epiphany to go from step to step) Not to be offensive, do you have autism? I have only met one student with that issue and that was the reason for him.

Answer 56

yes and a.d.h.d

Answer 57

no, because that left side will not give you that right side. And ah, thank you. Let me change my approach then

Answer 58

ok, so are you able to read my template?

Answer 59

(your right side up there is actually step one, but you just write the initial problem for the left)

Answer 60

please do that i need to get 2 more done if i upload the paper and tell u all the answers can you just tell me if they are right im failing in math,english and biology and report cards are coming out in 9 days

Answer 61

I'm sorry, but chances are (in math) the reason your answers are wrong are due to lack of work :/

Answer 62

k thats just so confusing i will be back in 4 minutes got to take a quick break ive been on here almost all day

Answer 63

So you probably have the correct answer, but it is the process they are grading.

Answer 64

because i do not know how to explain

Answer 65

so can you copy my example and use it as a template?

Answer 66

like literally copy it, then we can go through

Answer 67

i did i wrote it all down

Answer 68

ok so, step one, try my template out, replace my problem with yours to start

Answer 69

step two, try and see what happened in each step. I know it seems really really stupid to write everything out like that, but that is the 'process' the teacher wants

Answer 70

From what I have learned about autism, learning a template will probably help.
So if you memorize the example and then we make it generic, you will be able to do any similar problem.

essentially the teacher just wants you to answer questions. What did I do? Why did I do it?

Answer 71

be back in 2 minutes dont leave please

Answer 72

also side note... I hate common core. This unit is so not mathematically logical

Answer 73

ok, I'll be back in 5 break time :)

Answer 74

thanks

Answer 75

alrighty

Answer 76

so, I have an analogy for you.

Answer 77

k im back still trying to do this

Answer 78

have you ever put a puzzle together?

Answer 79

no i cant unless its small

Answer 80

small is fine, let me find a better analogy. What do you like? What are you good at?

Answer 81

do you like trains?

Answer 82

playing video games

Answer 83

ok, which games?

Answer 84

call of duty black ops 2

Answer 85

k look i think i got the first step trying to do the second

Answer 86

ohk, so in black ops, you have to play the story line piece by piece right?

Answer 87

7x+4y+3(x-y)=7x+4y+3x+3y-2x

Answer 88

you can't move on till you beat one mission(if you are like me, until you beat it on veteran :P )

Answer 89

very very close, you forgot the -2x on the left

Answer 90

not really its a shooting game with friends online oh well they call them my friends

Answer 91

oops yaaa! i wrote that but didn't type it now im working on the nxt

Answer 92

good, now before you move on

Answer 93

what property did you use to simplify 3(x-y)?

Answer 94

also, you dropped the minus sign(but I know it is a type-o since you did it right above)

Answer 95

distributive?

Answer 96

yep. and that my dear, is your justification