X = 2y − 4

7x + 5y = −66

Step-by-step explanation:

x -2y +4=0

7x-14y=-28

7x + 5y = −66

(-)

-19y=38

y=-2

x=-8

hope it helps

Step-by-step explanation

Substitute 2y-1 for x in the second equation:

7x + 5y = -66

7(2y-4) + 5y = -66

then solve for y:

14y - 28 + 5y = -66

19y = -38

y = -2

Substitute -2 for y in the first equation:

x  = 2y - 4

x = 2(-2) - 4

x = -8

The lines intersect at (-8,-2)