(5/4x-10）/（x-8)=5/7_数学解答

(5/4x-10）/（x-8)=5/7

人气：452 ℃　时间：2020-05-03 07:55:27

解答

(5/4x-10）/（x-8)=5/7
7(5/4x-10)=5(x-8)
35/4x-70=5x-40
35/4x-5x=70-40
15/4x=30
x=30x4/15
x=8