Don L. answered 09/01/17
Tutor
5
(18)
Fifteen years teaching and tutoring basic math skills and algebra
Hi Lucy, let x represent Tom's age. Then, John's age is 2x - 3 (twice Tom's age minus 3). Together their ages equal 50.
Equation to solve:
x + (2x - 3) = 50
3x - 3 = 50
3x = 53
x = 17 and 2/3 years.
Tom's age is 17 and 2/3 years.
John's age = 2 * Tom's age - 3
John's age = 2 * 17 2/3 - 3, or 32 and 1/3 years.
Check:
17 2/3 + 32 1/3 = 50
50 = 50
Questions?
Lucy W.
09/02/17