Question

3x-1/2=2 (x-7) me ajudem a resolver

Answer 1

3x-1/2=2(x-7)
2*(3x-1)/2 =2(2(x-7))
3x-1=4(x-7)
3x-1=4x-28
3x-4x=-28+1
-x=-27
x=27

3*27-1/2=2(27-7)
40=40
C.Q.D