80(X+2)=100X
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80(X+2)=100X80(X+2)=100X80(X+2)=100X80x+160=100x20x=160x=84(x+2)=5x4x+8=5xx=8使用百度Hi可以第一时间收到“提问有新回答”“
80(X+2)=100X
80(X+2)=100X
80(X+2)=100X
80x+160=100x
20x=160
x=8
4(x+2)=5x
4x+8=5x
x=8
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