Odpowiedź :
A) 8x -12 + 5 = 3 + 10x - 45
8x -7 = -42 + 10x
8x - 10x = -42 + 7
-2x = - 35 / :(-2)
X = 35/2
X = 17 1/2
8x -7 = -42 + 10x
8x - 10x = -42 + 7
-2x = - 35 / :(-2)
X = 35/2
X = 17 1/2