document.write( "Question 806026: I need help solving each system of equations. Here are the two question:
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document.write( "x+y-z=4
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document.write( " y =6
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document.write( " y+z=13\r
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Algebra.Com's Answer #485624 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! One problem per submission. \n" ); document.write( "THe first one is very easy\r \n" ); document.write( "\n" ); document.write( "y =6 \n" ); document.write( "y+z=13 \n" ); document.write( "x+y-z=4 \n" ); document.write( "take them in this order \n" ); document.write( "y=6 \n" ); document.write( "substitute 6 for y in the 2nd \n" ); document.write( "6+z=13 \n" ); document.write( "z=7 \n" ); document.write( "now sub in the third \n" ); document.write( "x+6-13=4 \n" ); document.write( "add 13 \n" ); document.write( "x+6=17 \n" ); document.write( "subtract 6 \n" ); document.write( "x=11\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |