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Daca 4a+5b+2c =88si 4ax +bx +cx=352 determinati x

Răspuns :

x(4a+b+c)=352
trebuie sa aflam 4a+b+c
4ax+5bx+2cx=352x(4a+5b+2c)=352
x88=352
x=352:88
x=4