Odpowiedź :
1)
8x - 5 = 7x + 3
8x - 7x = 3 + 5
x = 8
2)
A.
x - 26 = -26
x = -26 + 26
x = 0
B.
11/6x = 0 / 6/11
6/11 * 11/6x = 6/11 * 0
1/11 * 11x = 6/11 * 0
x = 0
C.
5x = 3x
5x - 3x = 0
2x = 0 // 2
x = 0
D.
x + 15 = 14
x = 14 - 15
x = -1
Odpowiedź D