Question

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

-x + 2y = -6
3x + y = 8

Answer 1

if you rearrange the first equation
-x + 2y = -6
to get
2y+6=x

you know what x is so you replace all x in the second equation with 2y+6 to get
3(2y+6) + y = 8

Answer 2

1) -2y + 6

2) 2y - 6

3) 2y + 6

4) -2y - 6

Answer 3

I just told you

Answer 4

IK THAT

Answer 5

thank you can u help me with another one ?