1X/4+(180-X)=6/5(180-X)怎么解_数学解答

1X/4+(180-X)=6/5(180-X)怎么解

人气：269 ℃　时间：2020-04-07 05:14:01

解答

1X/4+(180-X)=6/5(180-X)
乘以20得 5x+20(180-x)=24(180-x)
5x=4(180-x)
5x=720-4x
9x=720
x=80