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
Choose one answer.
A. −6 − x
B. −6 + x
C. 6 − x
D. 6 + x

Answer 1

In the second equation, first add y+6 to both sides. Then you will get y value in terms of x.

Then substitute this y value in 1st equation to get your x

Answer 2

x - y = -6
x = -6 + y
x+6 = y
D 6 + x

Answer 3

@suzukirider1400 actually, you don't need to do the second step. First step will suffice for the given question . (in the steps I mentioned)