document.write( "Question 781672: Is (-9,-7) a solution of 3x-7y=15 \n" ); document.write( "
Algebra.Com's Answer #476040 by stanbon(75887)\"\" \"About 
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Is (-9,-7) a solution of 3x-7y=15
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\n" ); document.write( "Substitute to see if you get a true statement::
\n" ); document.write( "3*-9 -7*-7 = 15
\n" ); document.write( "-27 + 49 = 15
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\n" ); document.write( "22 = 15
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\n" ); document.write( "False
\n" ); document.write( "So, (-9,-7) is not a solution.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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