Question

A system of equations is shown below.

Answer 1

Answer:

The answer is A.

Explanation:

Answer 2

A.  (-3,0)

Add the two equations together so one variable is eliminated:

  5x + 2y = -15

+  2x - 2y = -6

-------------------------

   7x         = -21

7x = -21

Solve for x:

x = -21 ÷ 7

x = -3

Now substitute x to any of the equation to solve for y. (I'll choose the second equation):

2x - 2y = -6

2(-3) - 2y = -6

-6 - 2y = -6

-2y = -6 + 6

-2y = 0

y = 0

x = -3

y = 0

(-3,0)