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Ma poate ajuta cineva
30:ax8=40
25x4:a=10


Răspuns :

30:a×8=40

a=30:a=40:8

a=30:a;=5

a=30:5

a=6

24×4:a=10

100:10

10

30:a×8=40

30:a=40:8

30:a=5

a=30:5

a=6

25×4:a=10

100:a=10

a=100:10

a=10