7x+10=0.5x+55解方程
问题描述：
7x+10=0.5x+55解方程
答
7x-0.5x = 55 - 10
6.5x = 45
x = 45 / 6.5
x = 45÷ (13/2)
x = 45* 2/13
x = 90/13