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put this solution on YOUR website!A 20% discount means that the original price has been reduced by 20%.
To find the original price if the sales price of $36.00 includes a 20% discount, let x = the original price. The sales price is x - 20% of x and this equals $36.00. The algebra looks like this, after changing the 20% to its decimal equivalent of 0.2:

Simplify and solve for x.

Divide both sides by 0.8

The original price was $45.00
Check:

= 36