First, you find a common factor between the two numbers, which, in this case, would be 18. So, you divide everything by 18 and you put the 18 outside the parentheses.
[tex] \frac{54+18x}{18} [/tex]
That would be equal to
18(3+x)
The x is truly a 1x, but there is no need to include the 1.
