4x-(x+6)=5(3x-1)+8

Answer: x=4

INCORRECT, x=-4

5(d+4)=7(d-2)

Answer: d=17

CORRECT

1/2+4m=3m-5/2

(This is one over two plus 4m equals 3m minus five over two, if it's hard to tell)

Answer: m=3

INCORRECT, m=-3

2(7-x)-20=7x-3(2+3x)

Answer: x=1

CORRECT

(If I am correct, please thank me )