document.write( "Question 207841: solve system using addition method
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document.write( "x+2y=32
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document.write( "9x-2y=28
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document.write( "solution (?,?) \n" );
document.write( "
Algebra.Com's Answer #157206 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! x+2y=32 \n" ); document.write( "9x-2y=28\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Add the equations together: \n" ); document.write( "10x = 60 \n" ); document.write( "x=6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Substitute x=6 into the first equation: \n" ); document.write( "x+2y=32 \n" ); document.write( "6+2y=32 \n" ); document.write( "2y=32-6 \n" ); document.write( "2y=26 \n" ); document.write( "y=13\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Check in the second equation:\r \n" ); document.write( "\n" ); document.write( "9x-2y=28 \n" ); document.write( "9(6)-2(13)=28 \n" ); document.write( "54 - 26=28 \n" ); document.write( "It checks!!\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R^2 \n" ); document.write( " |