Odpowiedź:
A) -5x +3 = 7x + 8 | - 3, - 7x
-5x - 7x = 8 - 3
-12x = 5
X= - 12/5
X = - 2 2/5
B) 1/8 (3x-3) = - (6-x) | *8
3x - 3 = - 48 + 8x | +3,-8x
3x-8x = 48+3
-5x = 51 |: (-5)
X= 51/ - 5
X = - 10 1/5
