Question

For the following system, if you isolated x in the second equation to use the Substitution Method, what expression would you substitute into the first equation?

2x + y = 8
-x - 3y = -12

3y + 12

-3y + 12

3y - 12

-3y - 12

Answer 1

@campbell_st

Answer 2

pika!

Answer 3

A

Answer 4

Can you explain ?

Answer 5

well u gotta move -3y to the other side so x is alone

Answer 6

then -3y becomes positive

Answer 7

and its 3y-12

Answer 8

So it's not A @Icedragon50

Answer 9

no its C lol

Answer 10

Oh I just thought it was A since you said it was at first, lol.

Answer 11

:P