9-1.4x=9.8x-2.4方程怎么解
问题描述:
9-1.4x=9.8x-2.4
方程怎么解
答
9=9.8x-2.4+1.4x
9+2.4=9.8+1.4x
11.4=11.2x
x=11.4/11.2
答
9-1.4x=9.8x-2.4
9.8x+1.4x=9+2.4
11.2x=11.4
x=11.4/11.2
x=57/56
答
移项
-1.4x-9.8x=-2.4-9
-11.2x=11.4
x=-1.036
答
移项
9-1.4x=9.8x-2.4
9.8x+1.4x=9+2.4
11.2x=11.4
x=11.4÷11.2
x=1又56分之1
答
9-1.4x=9.8x-2.4
9+2.4=9.8x+1.4x
11.4=11.2x
x=57/56
答
左右移向