Question

Simplify each expression.
(3.2x - 4.1) - (-x + 7.6)

Answer 1

any ideas where to start?

Answer 2

Not a clue.

Answer 3

I see if I can help i haven't done these for a long time

Answer 4

OKay thanks for help!

Answer 5

np

Answer 6

first what does x always = to when we don't know the value of x

Answer 7

Does it equal to 1?

Answer 8

yes good job ok so now we have to group the numbers according to their signs do you know how to do that

Answer 9

I dont know how to do that.

Answer 10

ok so we will have to move the number over so they ar in the same group

Answer 11

so you have (3.2x - 4.1) - (-x + 7.6)

you need to get the 3.2x and the -x (wich is 1) to be group together and the 4.1 and the 7.6 to be group together

Answer 12

now here is the thing what do you see in front of 4.1

Answer 13

Negative sign

Answer 14

yes most people think it means you subtract that number but it means that the number after it is a Negative good job

what if you have a positive like (-x + 7.6)

Answer 15

Does it mean to add it?

Answer 16

nope it means that the x is negative and the 7.6 is a positive in a problem like these the number inside () it makes the number a negative or a positive based on the sign in front of it

but what if you only have a number like (2-5)

in a case like this the 2 is a positive and the 5 is a negative do you get that

Answer 17

Oh okay yes I get it.

Answer 18

ok so now you need to group the according to i forget what it really call but i'm going to say they value because some have a x and some don't

Answer 19

so here is your problem (3.2x - 4.1) - (-x + 7.6) how do you think you are going to group them

Answer 20

3.2x - x?

Answer 21

and -4.1 + 7.6?

Answer 22

nope what do you see in the middle of both problems

Answer 23

A minus sign.

Answer 24

yes so now how do you think it's done

Answer 25

3.2x - -x and -4.1 - 7.6?

Answer 26

yes way to go

Answer 27

so now what do you do

Answer 28

YAY and I am not really sure do I turn 3.2x - -x into 3.2x + x?

Answer 29

no you subtract 3.2x - -1 then -4.1- 7.6

Answer 30

what do you get

Answer 31

what is 3.2x - -1

Answer 32

4.2 ?

Answer 33

yes and what is -4.1- 7.6

Answer 34

btw you have to include the x so it is 4.2x

Answer 35

-11.7?

Answer 36

Oh yeah I forgot about the x.

Answer 37

excellent so put the together and what do you get

Answer 38

4.2x - 11.7

Answer 39

good job
way to go
excellent
perfect
:)

Answer 40

Thank you so much for help hope you have an awesome day !

Answer 41

you to
i will give you a medal for all that hard work and not cheating by just wanting the answer without doing the work please fan in return

Answer 42

Oh thank you and I will!