Zadanie 2
a) 2x =21
b) x/3 = 7
c) x + 7 = 23
d) 14 - x = 2
e) x/2 = 15
Zadanie 3
a) 1,3x = 26
b) 0,9x = 81
c) 0,6x = 100
d) 1,5x = 60
e) 0,8x = 40
f) 0,7x = 49
