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

2x + y = 2
x − y = −6

a –6 − x
b –6 + x
c 6 – x
d 6 + x

Question

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

2x + y = 2
x − y = −6

a    –6 − x
b    –6 + x
c    6 – x
d    6 + x

whpalmer4 · Answer

$$x-y=-6$$You want y alone on one side.  You could add y to both sides, and add 6 (or subtract -6) to both sides.  Do that, and you'll see which choice you should make.

anonymous · Answer

6 + x @whpalmer4

whpalmer4 · Answer

Correct!

anonymous · Answer

thanks for all your help! @whpalmer4