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If 3p+4q=8 and 4p+3q=13, what is q equal to?

If 3p+4q=8 and 4p+3q=13, what is q equal to?
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If 3p+4q=8 and 4p+3q=13, what is q equal to?

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User Joshka
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q= -1. I did this problem by elimination, by multiplying the first one by -4 and the second by 3, to cancel out the p. I ended up with -7q=7. I divided both sides by -7, and got q=-1. 
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User Parth Modi
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