(0.1x-0.3)/0.03-(2x+1)/0.2=1.2快
问题描述:
(0.1x-0.3)/0.03-(2x+1)/0.2=1.2
快
答
(0.1x-0.3)/0.03-(2x+1)/0.2=1.2
(10x-30)/3-5(2x+1)=1.2
10x-30-30x-15=1.2*3
20x=-48.6
x=-2.43