Zad 4
a) 3 - (x + 5) + 2 (x+1) = 0
3 - x + 5 + 2x + 2 = 0
10 + x = 0
x = -10
b) -6 (1-x) = 6x - 2
-6 + 6x = 6x - 2 | -6x
0x= -4
c) 4 - (2x+5) = -2x - 1
4 - 2x - 5 = -2x - 1
0=0
