how many solutions does this problem have

Question

−6(x+7)=−4x−2

Answer 1

-6(x+7) = -4x-2

-6x -42 = -4x -2

2x = -40

x = -20

-6(-20+7) = -4(-20) -2

-6(-13) = 80-2

78 = 78

Just one solution: x =-20