Question

Solve the system using addion
7x+2y=-13
-7x+y=25

Answer 1

x = -3

y = 4

Explanation:

7x + 2y = -13

-7x + y = 25

3y = 12

-7x + y = 25

y = 4

-7x + 4 = 25

y = 4

-7x = 21

y = 4

x = -3

there is only 1 solution for this equation is (-3,4)