document.write( "Question 57701: Solve by substitution:
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document.write( "5x+2y=7
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document.write( "4x-y=3 \n" );
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Algebra.Com's Answer #39498 by faceoff57(108)![]() ![]() You can put this solution on YOUR website! 5x+2y=7 4x-y=3 \n" ); document.write( "5x+2(4x-3)=7 4x-3=y \n" ); document.write( "5x+8x-6=7 \n" ); document.write( "13x=13 4(1)-3=y \n" ); document.write( "x=1 4-3=y \n" ); document.write( " 1=y \n" ); document.write( " |