Odpowiedź :
e) -2(2x - 1) = 3
-4x + 2 = 3
-4x = 3 - 2
-4x = 1 / : -4
x = - 1/4
f) (3 - x) = -2
-x = -2 - 3
-x = -5
x = 5
g) 3 (2 – 3x) = -6 / : 3
2 - 3x = -2
-3x = -2 - 2
-3x = -4 / : -3
x = 4/3 = 1 1/3
e) -2(2x - 1) = 3
-4x + 2 = 3
-4x = 3 - 2
-4x = 1 / : -4
x = - 1/4
f) (3 - x) = -2
-x = -2 - 3
-x = -5
x = 5
g) 3 (2 – 3x) = -6 / : 3
2 - 3x = -2
-3x = -2 - 2
-3x = -4 / : -3
x = 4/3 = 1 1/3