Question

25 pts

2x + y = -2
x + y = 5

The x-coordinate of the solution to the system shown is _____.

-7
-3
3
7

Answer 1

x= -7

Explanation:

after deducting second equation from first we get

2x+y-(x+y)= -2-5

aftert soving this equation

x+0= -7

x= -7 ans

Answer 2

Explanation:

2x + y = - 2

x + y = 5 Subtract to get rid of the y

x = -2-5

x = -7