a) 4(x+1)-x=-5
4x+4-x=-5
3x=-5-4
3x=-9
x=-3
spr. 4(-3+1)-(-3)=-5
4(-2)+3=-5
-8+3=-5
-5=-5
b) -3(x+1)-x=9
-3x-3-x=9
-4x=12
x=-3
c) 3(x+2)+2x=4
3x+6+2x=4
5x=4-6
5x=-2
x=-0,4
spr.3(-0,4+2)+2*(-0,4)=4
-1,2+6-0,8=4
-2+6=4
4=4
d) x-7-2(3x+5)=3
x-7-6x-10=3
-5x-17=3
-5x=3+17
-5x=20
x=-4
spr. -4-7-2[3(-4)+5]=3
-11-2(-12+5)=3
-11-2*(-17)=3
-11+14=3
3=3
e) 2x-8-5x=-9
-3x=-9+8
-3x=-1
x=\frac{1}{3}
spr.2*\frac{1}{3}-8-5*\frac{1}{3}=-9
\frac{2}{3}-8-\frac{5}{3}=-9
\frac{2}{3}-8-1\frac{2}{3}=-9
-1-8=-9
-9=-9