Step-by-step explanation:
are there any examples?
Example:a+b=b+a
ab=ba
(a+b)+c = a(b+c)
Step-by-step explanation:
Since 88 is for one night and 20 per night in fees and taxes.
Step 1 : Calculate for $88
make N the subject of formula

N= 1
Step 2: Calculate for $20

make N the subject of formula

N = 1