p = price of a new backpack.
\\
0.055 p = tax.
\P + 0.055 p = 31.65.
\The problem statement can be written is:
\The original cost of a backpack is p, after a tax of $0.055P, the backpack costs
\$31.65. What is the original cost of the backpack?
The original cost of a backpack is p, after a tax of $0.055P, the backpack costs
\$31.65. What is the original cost of the backpack?
\