(4/7x-12）+3/2(4/7X-12)=X 解出来_数学解答

(4/7x-12）+3/2(4/7X-12)=X 解出来

人气：461 ℃　时间：2020-04-30 12:48:34

解答

(4/7x-12）+3/2(4/7X-12)=X
则5/2(4/7x-12)=x
则4/7x-12=2/5x
则20x-12*5*7=14x
则6x=12*5*7
则x=70