SOLUTION: Simon is 8 years old and his Mum is 30. In how many years will Simon's mum be 3 times as old as Simon?

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Question 1084501: Simon is 8 years old and his Mum is 30. In how many years will Simon's mum be 3 times as old as Simon?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
8, Simon
30, Mum
x, in so many years

30%2Bx=3%288%2Bx%29
x%2B30=3x%2B24
6=2x
highlight%28x=3%29