更新时间2019-11-04 04:27:02
(10+109.5-60/x)=1.5*(10+78-60/x)
119.5-60/x=1.5*(88-60/x)
119.5-60/x=132-90/x
90/x-60/x=132-119.5
30/x=12.5
x=30/12.5
x=2.4
119.5-60/x=1.5*88-90/x
119.5-60/x=924-90/x
119.5-924=60/x-90/x
-804.5=60/x-90/x
-804.5x=-30
x~0.03729