解方程X/15-2=X/30+10/60

问题描述:

解方程X/15-2=X/30+10/60

x/15 - 2 = x/30 + 10/60
解 方程两边同时乘以60得:
4x - 120 = 2x + 10
4x - 2x = 10 + 120
2x = 130
x = 60