(560-x)/x=40% x怎么算

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(560-x)/x=40%x怎么算(560-x)/x=40%x怎么算(560-x)/x=40%x怎么算(560-x)/x=40%两边同时乘以x560-x=40%x560=40%x+x1.4x=560x

(560-x)/x=40% x怎么算
(560-x)/x=40% x怎么算

(560-x)/x=40% x怎么算
(560-x)/x=40%
两边同时乘以x
560-x=40%x
560=40%x+x
1.4x=560
x=400