To find the price of the sweats before the discount, take x as this price and make x minus 0.2x (this represents the 20% discount) equal to 22.
[tex]x-0.2x=22[/tex]Now, find x:
[tex]\begin{gathered} x-0.2x=22 \\ 0.8x=22 \\ x=\frac{22}{0.8} \\ x=27.5 \end{gathered}[/tex]The price of the sweats before the discount was $27.5.