2-0.1x除以0.3减去0.3-x分之0.02=1
问题描述:
2-0.1x除以0.3减去0.3-x分之0.02=1
答
聊吧乘3
10(2-0.1x)+150(0.3-x)=3
20-x+45-150x=3
150x+x=20+45-3
151x=62
x=62/151