作业帮2400*40%*x+3750=(2400+300)*(40%+10%)*(x-3)怎么解
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2400*40%*x+3750=(2400+300)*(40%+10%)*(x-3)怎么解
2400*40%*x+3750=(2400+300)*(40%+10%)*(x-3)怎么解
2400*40%*x+3750=(2400+300)*(40%+10%)*(x-3)怎么解
2400*40%*x+3750=(2400+300)*(40%+10%)*(x-3)
960x+3750=2700*50%*(x-3)
960x+3750=1350*(x-3)
96x+375=135*(x-3)
96x+375=135x-405
39x=780
x=20