document.write( "Question 822051: how do you work out -5x+3=6 x-y=4 by elimination
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Algebra.Com's Answer #494562 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
PUT EACH EQUATION INTO THE SAME FORM, PREFERABLY STANDARD FORM.
\n" ); document.write( "\"-5x%2B3=6\" and \"x-y=4\",
\n" ); document.write( "Assuming you meant:
\n" ); document.write( "\"-5x%2B3y=6\" and \"x-y=4\";
\n" ); document.write( "these are in the form, \"ax%2Bby=c\".\r
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\n" ); document.write( "\n" ); document.write( "MULTIPLY ONE OR BOTH EQUATIONS SO THAT THE COEFFICIENT ON ONE OF THE VARIABLES IS THE SAME FOR BOTH EQUATIONS.
\n" ); document.write( "\"-5x%2B3y=6\" and \"3%28x-y%29=3%2A4\", \"3x-3y=12\" for the second equation.\r
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\n" ); document.write( "\n" ); document.write( "SUBTRACT (OR ADD) ONE EQUATION FROM THE OTHER.
\n" ); document.write( "\"%28-5x%2B3y%29%2B%283x-3y%29=6%2B12\"
\n" ); document.write( "\"-5x%2B3y%2B3x-3y=18\"
\n" ); document.write( "\"-5x%2B3x=18\"
\n" ); document.write( "\"-2x=18\"\r
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\n" ); document.write( "\n" ); document.write( "SOLVE FOR THE UN-ELIMINATED VARIABLE FIRST, AND THEN USE EITHER EQUATION TO FIND THE OTHER VARIABLE.
\n" ); document.write( "\"-2x%2F%28-2%29=18%2F%28-2%29\"
\n" ); document.write( "\"x=-9\"-----------part of the answer
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\n" ); document.write( "\"x-y=4\"
\n" ); document.write( "\"-y=4-x\"
\n" ); document.write( "\"y=x-4\"
\n" ); document.write( "\"y=-9-4\"
\n" ); document.write( "\"y=-13\"------------------other part of answer
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