Birthday 3043

Linda and her uncle Slavo have a birthday the same day. A few years ago, Linda was 13, and her uncle was 45 years old. How many years ago was it today that Uncle Slavo was three times older than Linda?

Correct answer:

x =  3

Step-by-step explanation:

(45+x) = 3(13+x)

(45+x) = 3·(13+x)

2x = 6

x = 6/2 = 3

x = 3

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