(x减83乘1.05)乘以0.5除x加0.18等于25 求X?怎么算啊?
问题描述:
(x减83乘1.05)乘以0.5除x加0.18等于25 求X?怎么算啊?
答
(x-83×1.05)×0.5/x+0.18=25
(x-83×1.05)×0.5/x=24.82
(x-83×1.05)×0.5=24.82x
x-83×1.05=49.64
x=136.79