(2/3X+4)除以(X-3)=3/4求X=多少?二十分钟内
问题描述:
(2/3X+4)除以(X-3)=3/4
求X=多少?二十分钟内
答
(2/3X+4)除以(X-3)=3/4
2/3X×4=3(X-3)
8/3X=3X-9
1/3X=9
X =27