Question

solve for y
5x-15y=20

Answer 1

here's my answer \[y=\frac{ x }{ 3 } - \frac{ 4 }{ 3}\]

Answer 2

but again it's none of the choices.

Answer 3

Hey lets take it slowly, so what was the first thing you did?

Answer 4

ok hold on this equation thing is gonna take a while for me to use

Answer 5

You don't have to just tell me if you subtracted something or added what ever :)

Answer 6

what are the choices?

Answer 7

\[5(x-3y)=20\]

Answer 8

I factored out the common term which is 5

Answer 9

tennisgril hold on

Answer 10

That's smart!!

Answer 11

But, we don't really need to do that here haha :)

Answer 12

\[5x-15y=20 \implies -15y=20-5x\] lets first subtract both sides by -5x

Answer 13

after that i divided both sides by that same number

Answer 14

You can absolutely do that! But I think this maybe more clear for you and cause less confusion

Answer 15

ok

Answer 16

Next we simply divide both sides by -15

Answer 17

\[y = \frac{ 20-5x }{ -15 } = -\frac{ 4 }{ 3 }+\frac{ x }{ 3 }\] so do you notice something compared to your answer?

Answer 18

Again it's exactly the same thing, remember i mentioned in the last post A+B = B+A just switch it around

Answer 19

ok I dont see anything compared to that... :(

Answer 20

Are you sure? That is the answer, both of our answers are the same

Answer 21

I know the thing is our answers don't match the answer choices given in the picture i attached

Answer 22

i already did hold on lemme do it again

Answer 23

it's right here

Answer 24

\[\frac{ x }{ 3 } = \frac{ 1 }{ 3 }x\]

Answer 25

ok finally lemme see if it's correct

Answer 26

yep! Thanks so much! If only there were more champions like you in this site

Answer 27

Yw :)