7x + 14 y = - 14

8x + 7y=-25

x=4

y=1

Step-by-step explanation:

7x + 14y = - 14

-2 / 8x + 7y = - 25 (multiple it with - 2 then add it with other equation)

7x + 14y = - 14

-16x - 14y = 50

-9x = 36

x = - 4

put the value in its place for the first equation

7 • - 4 + 14y = - 14

14y = - 14 + 28

y = 1