Tìm x

Tìm x bt:
a, 5.(x-7)=0
b,34.(2.x-6)=0
c,25+(15-x)= 30
d, 43-(24-x)=20
e, 2.(x-5)-17=25
f,24 + 3.(5-x) = 27
g,15 : x-2 =3
h, (32-x: 5) : 13= 2
g, (6-2x)(x-8)=0