(0.4x-2.1)/0.5=(0.1+0.2x)/0.03-0.6
问题描述:
(0.4x-2.1)/0.5=(0.1+0.2x)/0.03-0.6
答
(0.4x-2.1)/0.5=(0.1+0.2x)/0.03-0.6两边乘1.53(0.4x-2.1)=50(0.1+0.2x)-0.93*0.4x-3*2.1=50*0.1+50*0.2x-0.91.2x-6.3=5+x-0.91.2x-x=5-0.9+6.30.2x=10.4x=10.4÷0.2x=52