Question

解方程 8/1（x-5）=75% 6（0.6+x）=4又2/1 急~~~~!

Answer 1

8/1（x-5）=75%

两边乘8

x-5=6

x=6+5

x=11

6（0.6+x）=4又2/1

两边乘2

12×0.6+12x=9

12x=9-7.2

12x=1.8

x=1.8÷12

x=0.15