document.write( "Question 1020824: Given the following system of equations :
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document.write( "2x+3y=12
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document.write( "2x-2y=2\r
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document.write( "What is the value of x+y?
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Algebra.Com's Answer #636649 by FrankM(1040)![]() ![]() You can put this solution on YOUR website! 2x+3y=12 \n" ); document.write( "2x-2y=2\r \n" ); document.write( "\n" ); document.write( "Subtract equation 2 from equation 1\r \n" ); document.write( "\n" ); document.write( "0x+5y=10\r \n" ); document.write( "\n" ); document.write( "y=2\r \n" ); document.write( "\n" ); document.write( "substitute \r \n" ); document.write( "\n" ); document.write( "2x-2(2)=2\r \n" ); document.write( "\n" ); document.write( "2x-4=2\r \n" ); document.write( "\n" ); document.write( "2x=6\r \n" ); document.write( "\n" ); document.write( "x=3\r \n" ); document.write( "\n" ); document.write( "y=2, x=3\r \n" ); document.write( "\n" ); document.write( "x+y=5, right? \n" ); document.write( " |