Explicație pas cu pas:
a)5x-6(x-1)=3x+2
5x-6x+6=3x+2
4x=6-2
x=4÷4=1
b)3(2x-1)+2(2-x)=x-8
6x-3+4-2x=x-8
3x=-8-1
3x =- 9=>> x= - 3
c) 2(1-x)-5(1-2x)=5
2-2x-5+10x=5
8x=8
x=1
d)2(1-2x)-3(2-3x)+4(3-4x)=5(4-5x)
2-4x-6+9x+12-16x=20-25x
-4x+9x-16x+25x=20-2+6-12
14x=12
x= 12/14=6/7
