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Skyler is 6 years older than Destiny. In 4 years the sum of their ages will be 44. How old is Skyler now?
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Let Skyler age be x.
Then the Destiny age is (x-6) years.
Next, write equations for their ages in 4 years, as you read the problem
(x+4) + ((x-6)+4) = 44.
Simplify and find x
x + 4 + x - 6 + 4 = 44
2x +2 = 44
2x = 44 - 2
2x = 42
x = 42/2 = 21.
ANSWER. Skyler is 21 years old.
CHECK. (a) Destiny is 21-6 = 15 years old.
(b) In 4 years the sum of their ages will be (21+4) + (15+4) = 25 + 19 = 44. ! Correct !
Solved.