2010-[(x×7-0.6)×0.5-4]÷0.1=1997,求x
问题描述:
2010-[(x×7-0.6)×0.5-4]÷0.1=1997,求x
答
(3.5X-0.3-4)÷0.1=1997
35X-37=1997
35x=1960.X=56