Question

x－0.64x＝9 怎么解方程?

Answer 1

x－0.64x＝9

0.36x =9

36x =900

x =25

2.9*3 +5x=16.5

8.7+5x=16.5

5x =7.8

x=1.56

3.4x-48=26.8

3.4x=74.8

x=22