用等式的性质解方程:0.2x-1=0.3x
问题描述:
用等式的性质解方程:0.2x-1=0.3x
答
两边同时减去0.2x
0.2x-1-0.2x=0.3x-0.2x
-1=0.1x
两边同除以0.1
-1÷0.1=0.1x÷0.1
-10=x
x=-10