x-2/5-36-2/3(x-2/5x-36)=30请帮小弟吧!_数学解答

x-2/5-36-2/3(x-2/5x-36)=30
请帮小弟吧!

人气：127 ℃　时间：2020-04-01 20:50:49

解答

x-2/5-36-2/3(x-2/5x-36)=30
x-2/5-2/3(x-2/5x-36)=66
x-2/5-2/3(3x/5-36)=66
x-2/5-2x/5+24=66
x-2/5-2x/5=42
3x/5=42+2/5
3x/5=212/5
3x=212
x=212/3