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28+2030+2(y+5)=3•(81-75)•101

Răspuns :

28+2030+2*(y+5)=3*(81-75)*101

2058+2*(y+5)=3*6*101

2058+2*(y+5)=18*101

2058+2*(y+5)=1818

2*(y+5)=-240

y+5=-120

y=-125