Odpowiedź:
Szczegółowe wyjaśnienie:
1) -3x = 17/:-3
x = -17/3=
2) -7x - 3 = -13
-7x = -13 + 3
-7x = -10/:-7
x = 10/7
3) -9 + 3x = -11
3x = -11 + 9
3x = -2/:3
x = -2/3
4) -4x + 8 - 2x = 12
-6x = 12 - 8
-6x = 4/:-6
x = -4/6= -2/3
5) -3 - 2x - x = 5
-3x = 5 + 3
-3x = 8/:-3
x = -8/3
6) -x + 3x - 1 = 7
2x = 7 + 1
2x = 8/:2
x = 4
