Odpowiedź:
Poziom A:
a) 5x = 15
x = 3
b) 4x = 20
x = 5
c) 8x = 64
x = 8
d) 7x = 14
x = 2
e) -4x = -16
x = 4
f) 5x = 30
x = 6
g) 6x = 42
x = 7
h) 2x = 18
x = 9
i) 6x = 6
x = 1
Poziom B:
a) 2x = -6
x = -3
b) 7x = 14
x = 2
c) 8x = 24
x = 3
d) 4x = -4
x = -1
e) 7x = 28
x = 4
f) 4x = -8
x = -2
g) 6x = 12
x = 2
h) 2x = 18
x = 9
i) 2x = -12
x= -6