document.write( "Question 739706: solve using the substitution method\r
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document.write( "p+5q-8=0
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document.write( "5p-q-2+0 \n" );
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Algebra.Com's Answer #451301 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! p+5q-8=0 OR p=8-5q \n" ); document.write( "5p-q-2+0 \n" ); document.write( "5(8-5q)-q-2=0 \n" ); document.write( "40-25q-q-2=0 \n" ); document.write( "-26q=-40+2 \n" ); document.write( "-26q=-38 \n" ); document.write( "q=-38/-26 \n" ); document.write( "q=19/13 ans. \n" ); document.write( "p=8-5(19/13) \n" ); document.write( "p=8-95/13 \n" ); document.write( "p=(8*13-95)/13 \n" ); document.write( "p=(104-95)/13 \n" ); document.write( "p=9/13 ans. \n" ); document.write( "Proof: \n" ); document.write( "5*9/13-19/13-2=0 \n" ); document.write( "45/13-19/13-2=0 \n" ); document.write( "26/13-2=0 \n" ); document.write( "2-2=0 \n" ); document.write( "0=0 \n" ); document.write( " |