Odpowiedź:
3(1 - x) + 2 = -7
3 - 3x + 2 = -7
5 - 3x = -7
-3x = -7 - 5
-3x = -12 /: (-3)
x = 4
4 < 5
Odp. A
Sprawdzenie:
3(1 - 4) + 2 = -7
3 • (-3) + 2 = -7
-9 + 2 = -7
-7 = -7
L = P
