60乘以(x减1)等于40乘以(x加1)怎么做

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60乘以(x减1)等于40乘以(x加1)怎么做60乘以(x减1)等于40乘以(x加1)怎么做60乘以(x减1)等于40乘以(x加1)怎么做60×(x-1)=40×(x+1)60x-60=40x+402

60乘以(x减1)等于40乘以(x加1)怎么做
60乘以(x减1)等于40乘以(x加1)怎么做

60乘以(x减1)等于40乘以(x加1)怎么做
60×(x-1)=40×(x+1)
60x-60=40x+40
20x=100
x=5

何炅垃圾启乣

60(x-1)=40(x+1)
60x-60 =40x+40
移项
60x-40x =60+40
20x =100
x =5