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Luke is now twice as old as Alex. Four years ago, Luke was three times as old as Alex then. How old is Luke?

Luke is now twice as old as Alex. Four years ago, Luke was three times as old as Alex then. How old is Luke?

Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter3: Solving Equation And Problems
Section3.5: Equations With The Variable On Both Sides
Problem 4P
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Luke is now twice as old as Alex. Four years ago, Luke was three times as old as Alex then. How old is Luke?

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