2x+3*4*(x/5)=55 解方程

问题描述:

2x+3*4*(x/5)=55 解方程

2x+12x/5=55 (10x+12x)/5=55 22x=275 x=275/22 =25/2

x=十四分之二百七十五

2x + 12x/5 = 55
(10x + 12x)/5 = 55
22x = 275
x = 275/22
= 25/2