3. Uzupełnij:
a) x-16 = 29 X
b) 14+ x = 11
c) X+17 = 20 11
a) x-16 = 29 X
b) 14+ x = 11
c) X+17 = 20 11
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Odpowiedź:
a) x-16=29
x=29=16
x= 45
b) 14+ x =11
x=11-14
x= - 3
c) x+17=20
x= 20-17
x=3