Tìm số nguyên x biết: (2x - 5) + 17 = 6

e) 3x-28=x+36

3x-x=36+28

2x=64

x=32

f) (-12)².x=56 +10.13x

144x=56+130x

144x-130x=56

14x=56

x=4

c) -12 +3(-x+7)=-18

3(-x+7) =-6

-x+7=-2

x=9

d) -45:5.(-3-2x)=3

5.(-3-2x)=-15

-3-2x=-3

2x=0

x=0

a) (2x - 5) + 17 = 6

2x-5=-11

2x=-6

x=-3

b) 10 - 2(4-3x)=-4

2(4-3x)=14

4-3x=7

3x=-3

x=-1