To Solve: The system of equations of two variables.
Answer to Problem 13CT
Joe age is
Explanation of Solution
Given: Six years ago Joe foster was two years more than five times as old as his daughter. Six years from now he will be eleven years more than twice as old as she will be. How old is Joe?
Let a be the Joes current age and
Equations for six years ago
Equations for six years from now
Substitute equation one in second
Substitute
Hence, Joe age is
Chapter 9 Solutions
Algebra: Structure And Method, Book 1
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