3x / 0.5 - 2-x/0.4 = 1
问题描述:
3x / 0.5 - 2-x/0.4 = 1
答
6x-2-5x/2=1
12x-4-5x=2
7x=6
x=6/7
答
3x / 0.5 - 2-x/0.4 = 1
6x - 2 - 2.5x = 1
3.5x = 3
x = 6/7