(0.1x-0.2)÷0.02-(x-1)÷0.5=3求解.解方程.
问题描述:
(0.1x-0.2)÷0.02-(x-1)÷0.5=3求解.解方程.
答
(0.1x-0.2)÷0.02-(x-1)÷0.5=3
5x-10-2(x-1)=3
5x-10-2x+2=3
3x=11
x=11/3