Question

Multi-Step equations Need help on the one's I got wrong.

5(x - 4) = 12
for this I got 42/5 but it was marked wrong





7(2x + 6) = 1
I got 41/14 for this aswell,but marked wrong aswell





4(3 - 2x) = 15
and I got 12/23 for this

Were did I go wrong???

Answer 1

ok I am going to break this down for you so you can learn what to do

Answer 2

Im all ears

Answer 3

for the first one

5(x-4)=12

the fisrt step is to multiply 5 into the parenthases what do you get

Answer 4

5x-20=12

Answer 5

then I add +20 and add 20 to 12

Answer 6

and 20 and 20 cancel each other out

Answer 7

yes good

Answer 8

what is 12 + 20

Answer 9

the answer is 32/5 then?

Answer 10

yes

Answer 11

Now that is weird

Answer 12

why

Answer 13

I had 32/5 before and it was marked partiallly right

Answer 14

the first two are marked partially right

Answer 15

hm is this like a workpad or something?

Answer 16

its online classes

Answer 17

ok is this an essay?

Answer 18

the 2nd one should be 41/14 but its being marked wrong no its just an assignment

Answer 19

oh ok

Answer 20

I really dont understand this for the 2nd and 3rd I keep getting the same answers and 3rd one is actually marked wrong

Answer 21

ok the second one is a little tricky so I am going to have to do this one with you as well

Answer 22

14x+42=1

Answer 23

this is your question the first step is to multiply 7 into the parenthases

7(2x + 6) = 1

Answer 24

yes

Answer 25

14x+42=1 is right

Answer 26

14/40?

Answer 27

or 41

Answer 28

ok lets subtract 42 from both sides what is 1 - 42

hint: it is 42-1 with a nagative sign next to it

Answer 29

-41

Answer 30

yes

Answer 31

so now we have 14x=-41

Answer 32

when you divide what do you get

Answer 33

-2.9

Answer 34

yeah I think you are only getting partial credit because you are sapposed to turn the fraction into a decimal so that is what you are doing wrong except for 2 and 3

Answer 35

Hold on I'll see you a picture of it

Answer 36

show you*

Answer 37

ok

Answer 38

do you see it

Answer 39

yep

Answer 40

confusing x.x

Answer 41

yeah it is hm i dont know what they want

Answer 42

i would try putting the anser we just got -2.9

Answer 43

alright

Answer 44

yea your right

Answer 45

oh good ok do you want helo with the third one?