SOLUTION: A father is 51 years old and his son is 19. How many years ago was the father 5 times his son's age?

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Question 979432: A father is 51 years old and his son is 19. How many years ago was the father 5 times his son's age?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x, how many years

51-x=5%2A%2819-x%29
51-x=5%2A19-5x
51-x-5%2A19=-5x
51-5%2A19=-4x
4x=5%2A19-51
4x=95-51
4x=44
highlight%28x=11%29