# How do I find the answer to a question like: I have a sum of 75. When I triple the second number and add it to the first number, I get a sum of 111. What are the two numbers?

## Answers

##### Batani Bava, psc

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##### Anonymous, pscresults

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##### sarah evans, Best Domain Deals

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##### Will Carington, works for Noodle

Try writing the problem out as two equations, then solving by addition. In this instance, the two equations would be "x + y = 75" and "3x + y = 111." Here's a hint: to eliminate one of the variables here, try multiplying one of the equations by -1.

For more on solving systems of linear equations, try browsing Noodle's Learning Materials.