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[tex] \frac{a}{5} [/tex] = [tex] \frac{b}{6} [/tex] . 6a - 5b = ?

Răspuns :

a / 5 = b / 6
6a = 5b
6a - 5b = 5b - 5b = 0
[tex] \frac{a}{5}= \frac{b}{6} }; 6a=5b ; 6a-5b=5b-5b=0;[/tex]