The difference between 1/4 of a number and 1/6 of the same # is 18. Which equation shows the correct relationship?
1.1/4x-1/6x=18
2.1/4x=1/6x=18
3.1/4x+18=1/6x
4.1/6x-18+1/4x=18
5.1/6x-18=1/4x