Problema Solution
The price of a brick today is 49 cents. This is 3 cents less than 4 times the price 20 years ago. What was the price 20 years ago?
Answer provided by our tutors
let x = the price 20 years ago
4x - 3 = 49
by solving we find:
x = 13 cents
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the price 20 years ago was 13 cents.