1500 x=1200(9-x) 解方程
问题描述:
1500 x=1200(9-x) 解方程
答
两边除以300
5x=4(9-x)
5x=36-4x
5x+4x=36
9x=36
x=36÷9
x=4
答
1500 x=1200(9-x)
两边除以300
5x=4(9-x)
5x=36-4x
5x+4x=36
9x=36
x=36÷9
x=4