Question

Tell which equation you would choose to solve for one of the variables. Explain.

3x – y=0
2x + y = -10

Answer 1

option 2

Explanation:

its easier because you can transfer the y to the other side and it gets easier.

2x = -10y

x = 2/-10 y

x = -5y

Answer 2

2x + y = -10

Explanation:

2x + y = -10

y = -2x - 10

This can then be substituted for y, for the first equation.