algebra word problem

Question

A man paid $71.40 for a radio. The radio was marked 15% off the original selling price. What was the original selling price?

Answer 1

If the radio was 15% off, that means that the man paid 85% of the original price.

Thus, .85x = $71.4 where x is the original price,

and x = $71.4/.85 = $84.00