Odpowiedź:
a)
4x + 8 = 0
4x = -8
x = -2
b)
1/2 x + 3 = 2
1/2 x = 2-3
1/2 x = -1
x = -1 / 1/2
x = -1 x 2
c) 2x +5=-9
2x = -9 -5
2x = -14
x = -7
d) 3-2x = 17
-2x = 17 -3
-2x = 14
e) ( x + 1) :3= -2
x+1 = -2 x 3
x+1 = -6
x = -6 -1
x= -7
f) (x +4) :2 = 2
x + 4 = 2 x 2
x = 4-4
x = 0
