1/2x+35+1/3x+20=x

问题描述:

1/2x+35+1/3x+20=x

1/2x+35+1/3x+20=x
(1/2+1/3)x=x-(20+35)
5/6x=x-55
(1-5/6)x=55
1/6x=55
x=55÷1/6
x=330