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Rezolvatimi exercitiul x-y=600,x=5*y

Răspuns :

5y-y=600
4y=600
y=600:4=150
x=5x150=750
x-y=600
x=5*y
5*y-y=600
4y=600
y=600:4
y=150
x=5*y
x=5*150
x=750