9.6+1.8x=7.8x解方程
9.6+1.8x=7.8x解方程
9.6+1.8x=7.8x解方程
9.6+1.8x=7.8x解方程
9.6+1.8x=7.8x
7.8x-1.8x=9.6
6x=9.6
x=9.6÷6
x=1.6
9.6=6x
6x=9.6
x=1.6
9.6+1.8x=7.8x解方程
9.6+1.8x=7.8x解方程
9.6+1.8x=7.8x解方程
9.6+1.8x=7.8x
7.8x-1.8x=9.6
6x=9.6
x=9.6÷6
x=1.6
9.6=6x
6x=9.6
x=1.6