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Daca 4a+5b+2c=88 si 4ax+5bx+2cx=252 , determinati x . (Dau corana , multumesc si 5 stele va rog frumos )

Răspuns :

4ax+5bx+2cx=252
x(4a+5b+2c)=252
x·88=252
x=252/88=63/22
x=63/22
Spor la lucru!