SOLUTION: Please help me solve this question: The sum of Al's age and his older brother's age is 29. The difference between their ages is 5 years. How old is Al? I came up with: B+A

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Question 271023: Please help me solve this question:
The sum of Al's age and his older brother's age is 29. The difference between their ages is 5 years. How old is Al?
I came up with:
B+A=29
B-A=5
A=?
But then, I don't know how to write the equation.
Thanks

Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
we start with these equations
(1) B%2BA=29
(2) B-A=5
step 1 - add down to get
(3) 2B+=+34
step 2 - divide to get
(4) b+%2B+17
step 3 - by substitution,
A+=+12