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Află Nr necunoscut
9×4:a=6
6×4:b=8
C:5×4=8
D×3:6=4
Urgent dau coroana


Răspuns :

a)
[tex]9 \times 4 \div a = 6 \\ 36 \div a = 6 \\ a = 6[/tex]
b)
[tex]6 \times 4 \div b = 8 \\ 24 \div b = 8 \\ b = 3[/tex]
9×4:a=6
36:a=6
a=36:6
a=6

6×4:b=8
24:b=8
b=24:8
b=3

C:5×4=8
C:20=8
C=20×8
C=160

D×3:6=4
D×3=6×4
D×3=24
D=24:3
D=8

Succes!