SOLUTION: Hi, for my homework i have to do some simultaneous equations and i dont quite understand them. Can you please solve 5p+3q=2 2p-5q=7 ? Thank you very much!

Algebra ->  Equations -> SOLUTION: Hi, for my homework i have to do some simultaneous equations and i dont quite understand them. Can you please solve 5p+3q=2 2p-5q=7 ? Thank you very much!      Log On


   

Question 811448: Hi, for my homework i have to do some simultaneous equations and i dont quite understand them. Can you please solve 5p+3q=2 2p-5q=7 ?
Thank you very much!
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
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5p%2B3q=2+
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2p-5q=7
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Here is a method, which you should do on your own.

Multiply the first equation by 2; multiply the second equation by 5.
Subtract one either equation from the other equation, and solve first directly for the value of q. Use this value to find the value of p.