document.write( "Question 320482: what is the solution of the following system of equations?\r
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document.write( "4y - x = 10
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document.write( "3y + 5x = -4 \n" );
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Algebra.Com's Answer #229541 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 4y-x=10 multiply by 5 & add. \n" ); document.write( "3y+5x=-4 \n" ); document.write( "20y-5x=50 \n" ); document.write( "----------------- \n" ); document.write( "23y=46 \n" ); document.write( "y=46/23 \n" ); document.write( "y=2 ans. \n" ); document.write( "4*2-x=10 \n" ); document.write( "8-x=10 \n" ); document.write( "-x=10-8 \n" ); document.write( "-x=2 \n" ); document.write( "x=-2ans. \n" ); document.write( "Proof: \n" ); document.write( "3*2+5*-2=-4 \n" ); document.write( "6-10=-4 \n" ); document.write( "-4=-4\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |