SOLUTION: Alberto will be 69 years old in fifteen years.How old is he now?

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Question 1138044: Alberto will be 69 years old in fifteen years.How old is he now?
Answer by MathLover1(20850) About Me  (Show Source):
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Alberto will be 69 years old in fifteen years.
How old is he now?
let Alberto's age now be x
in 15 years he will have x%2B15
if Alberto will be 69 years old in fifteen years, we have
x%2B15=69..........solve for x
x=69-15
x=54
=>Alberto is 54 years old now