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Curcubeu666
a fost răspuns

ecuati 30:x=5, 30-x=5

Răspuns :

Marcela16
30:x=5 x=30 :5 x=6
30-x=5 x=30-5 x=25
Vasyboosu
30:x=5
x=30:5
x=6
30:6=5 

30-x=5 
x=30-5
x=25
x=30-25=5

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