5x-20*5=2.5x+20怎么解
问题描述:
5x-20*5=2.5x+20怎么解
答
5x-2.5x=20+20*5
2.5x=120
x=48
答
5x-20*5=2.5x+20
2.5x=120
x = 48
答
5x-20*5=2.5x+20
5x-100=2.5x+20
5x-2.5x=100+20
2.5x=120
x=120÷2.5
x=48
答
5x-20*5=2.5x+20
5x-100=2.5x+20
5x-2.5x=100+20
2.5x=120
x=48