Question

Can someone check my answer?

Answer 1

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 2

-2y + 6

2y - 6 <=== my answer

2y + 6

-2y - 6

Answer 3

@ZeHanz @zepdrix @phi

Answer 4

Because -x +2y = -6, you can say: -x = -2y -6, so x = 2y + 6

Answer 5

how did you get that?

Answer 6

Because i suck at algebra....

Answer 7

Can you follow the steps I typed?

Answer 8

First step: subtract 2y
Second step: multiply with -1

Answer 9

mhmk im writing this down as you go

Answer 10

So you would substitute 2y + 6 for x in the second equation...

Answer 11

huh?

Answer 12

Read the question. It is about substitution of x in the second equation with ...something that is equal to x, and you got that from the first equation: x = 2y + 6.