Question

22

Answer 1

Answer:

-2y + 10

Step-by-step explanation:

Substitution method:

On the second equation of the system, we have to find x as a function of y.

-x - 2y = -10

We have to find x as a function of y, so:

$-x = -10 + 2y$

Multiplying both sides of the equality by -1:

$x = -2y + 10$

So -2y + 10 is the answer to this question.