Question 1143651
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Of course you should know how to set up and solve this problem using formal algebra.<br>
However, solving the problem using logical reasoning can be valuable mental exercise.<br>
Ralph is now 16; in 2 years he will be 18.
When he is 18 (2 years from now), he will be twice Joe's age; that means Joe's age 2 years from now will be 9.
And that means Joe's age now is 7.