Question

x-25%x=3.6解方程1-25%x=3.6解方程

Answer 1

x-25x/100=3.6

(x-0.25x)=3.6

x=3.6/0.75

x=4.8

1-25x/100=3.6

0.25x=1-3.6

x= - 2.6/0.25

x= - 10.4