求解x+(2x-12)+(2x-12+20)=86
问题描述:
求解x+(2x-12)+(2x-12+20)=86
答
5x-4=86
5x=90
x=18
求解x+(2x-12)+(2x-12+20)=86
5x-4=86
5x=90
x=18