360+2/7(x--360)+(1/2)x=x怎么解

问题描述:

360+2/7(x--360)+(1/2)x=x怎么解

360=x-(1/2)x-(2/7)x+2*360/7
360=(1/2)x-(2/7)x+2*360/7
360-2*360/7=(1/2)x-(2/7)x
360-2*360/7=(3/14)x
(360-2*360/7)*14=3x
x=1200

360+2/7(x--360)+(1/2)x=x
等式两边同时乘以14
360×14+4x-4×360+7x=14x
5040+11x-1440=14x
3x=3600
x=1200