7/3×x=21怎么解方程

问题描述:

7/3×x=21怎么解方程

7/3X=21
X=9

7/3×x=21
7/3×x÷7/3=21÷7/3
x=21*3/7
X=9

7/3×x=21
3/7 * 7/3 * x = 21* 3/7
x = 21 * 3/7
x=9

x=21÷7/3
x=9