1x/0.2-0.27x+0.18/0.04=1

问题描述:

1x/0.2-0.27x+0.18/0.04=1

0.1x/0.2-0.27x+0.18/0.04=1
(0.1/0.2-0.27)x=1-0.18/0.04
(0.5-0.27)x=1-4.5
0.23x=-3.5
x=-3.5/0.23
x=-15.2174