SOLUTION: Ed and his younger sister are 3 years apart. The sum of their ages are 33. How old is each? Write an algebraic equation, then solve by the 4 steps!

Algebra ->  Equations -> SOLUTION: Ed and his younger sister are 3 years apart. The sum of their ages are 33. How old is each? Write an algebraic equation, then solve by the 4 steps!      Log On


   

Question 434365: Ed and his younger sister are 3 years apart. The sum of their ages are 33. How old is each? Write an algebraic equation, then solve by the 4 steps!
Found 2 solutions by MathLover1, solver91311:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

Ed is x years old
his younger sister y=x-3...substitute in sum
The sum of their ages are x%2By=33
x%2Bx-3=33
2x=36
x=18
y=18-3=15

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Let represent the sister's age. Then represents Ed's age. The sum is 33, so:



Just solve for and

John

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