SOLUTION: Methods of substitution or addition. Fractions are presenting issues. 1/6x - 1/12y = -13/6 over 1/5x + 1/4y = 2 Thanks again!

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Question 578790: Methods of substitution or addition. Fractions are presenting issues.
1/6x - 1/12y = -13/6 over
1/5x + 1/4y = 2
Thanks again!

Answer by KMST(5328)   (Show Source): You can put this solution on YOUR website!
To add or compare fractions, you express them on a common denominator that is a multiple of all the denominators.
If you were working with 1/5 and 1/4, you would use 20 as a common denominator because it is a common multiple of 4 and 5.
When fractions present issues in an equation you "eliminate denominators by multiplying both sides of the equal sign by a common multiple, to get an simpler equivalent equation
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You can do something similar for the other equation, using 12 for a common multiple.
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Now you have the easier system:

You could use substitution, solving one equation for y
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and substituting the expression found for y in the other equation
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Then substituting into
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