Question 152782
a)  2x-2(2-x)=40 

2x-4+2x=40
4x-4=40
4x=44
x=11

b)  2(2x+4)=-3(2x+1)

4x+8=-6x-3
10x=-11
x=-1.1
 
c)   12-(3x-2)=2(x-1)+3x

12-3x+2=2x-2+3x
-8x=-16
x=2
 
d)   -3(x-2)=5(2x-12)

-3x+6=10x-60

-13x=-66
x=66/13