x-4分之1x等于8分之3kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

问题描述:

x-4分之1x等于8分之3
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x-x/4=3/8.
3x/4=3/8.
解得x=1/2

x/(x-4)=3/8
x=-12/5

x-(x/4)=3/8
x(1-1/4)=3/8
x*(3/4)=3/8
x=(3/8)*(4/3)
x=1/2

x=1/2

(1-1/4)x=3/8
(3/4)x=3/8
x=3/8÷(3/4)
x=2分之1

-2.4