3.6x+4.5x=56.7用方程怎么解

问题描述:

3.6x+4.5x=56.7用方程怎么解

3.6x+4.5x=56.7
8.1x=56.7
x=7

8.1X=56.7
X=56.7/8.1
X=7

8.1x=56.7x
x=7

合并同类项得
(3.6+4.5)x=56.7
x=7

3.6x+4.5x=56.7
(3.6+4.5)x=56.7
8.1x=56.7
x=56.7\8.1
x=7