10X=15(X-30)的方程的解法

问题描述:

10X=15(X-30)的方程的解法

10X=15(X-30),
2X=3(X-30),
2X=3X-90,
-X=-90,
X=90.

10x=15(x-30)
10x=15x-15x30
10x=15x-450
15x-10x=450
5x=450
x=450/5
x=90

10X=15X-450,450=5X,X=90

10x=15x-450
15x-10x=450
5x=450
x=90

10x=15x-450
5x=450
x=90

10X=15(X-30)
10X=15X-15*30
-5X=-450
X=90

10X=15(X-30)
10x=15x-450
10x-15x= -450
-5x = - 450
x= 90

10X=15(X-30)
10x=15x-450
5x=450
x=90

10X = 15(X-30)
10X = 15X-450
10X - 15X = -450
-5X = -450
X = 450/5 = 90