X-1/3X=28怎么解
问题描述:
X-1/3X=28怎么解
答
X-1/3X=(1-1/3)X=(2/3)X=28
X=28/(2/3)=42
X-1/3X=28怎么解
X-1/3X=(1-1/3)X=(2/3)X=28
X=28/(2/3)=42