5x-4=7x-24
问题描述:
5x-4=7x-24
答
5x-4=7x-24
两边加上-5x+24
7x-5x=-4+24
2x=20
x=10
5x-4=7x-24
5x-4=7x-24
两边加上-5x+24
7x-5x=-4+24
2x=20
x=10