(10 x 2x + 2x)- (10x + 2x) =36
问题描述:
(10 x 2x + 2x)- (10x + 2x) =36
答
(10 x 2x + 2x)- (10x + 2x) =36
22x-12x=36
10x=36
x=36÷10
x=3.6