2 х +4*(40-х)=100 4 х +2*(40-х)=100

Question

Cashsmile · Accepted Answer

2 х +4*(40-х)=1002x+160-4x=100-2x=-60x=30 4 х +2*(40-х)=100 4x+80-2x=1002x=20x=10

2 х +4(40-х)=100 4 х +2(40-х)=100