document.write( "Question 344359: I need help solving the following problems using substitution AND elimination.\r
\n" ); document.write( "\n" ); document.write( "1. -2x+3y= 14
\n" ); document.write( " x+2y=7\r
\n" ); document.write( "\n" ); document.write( "2. 5x-3y= -11
\n" ); document.write( " x-2y=2\r
\n" ); document.write( "\n" ); document.write( "3.x-y=3
\n" ); document.write( " 6x+4y=13\r
\n" ); document.write( "\n" ); document.write( "If you've noticed the 2d equation comes in standard form ( x+ y=b). So how do I get the answer. Please help, I just really want to understand this.\r
\n" ); document.write( "\n" ); document.write( "Thank you. Your help is appreciated.
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Algebra.Com's Answer #246372 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
I'll do one, you do the next two.
\n" ); document.write( "1. \"-2x%2B3y=+14\"
\n" ); document.write( "2.\"x%2B2y=7+\"
\n" ); document.write( "Multiply eq. 2 by 2 and add to eq. 1 to eliminate \"x\".
\n" ); document.write( "\"-2x%2B3y%2B2x%2B4y=14%2B2%287%29\"
\n" ); document.write( "\"7y=28\"
\n" ); document.write( "\"highlight%28y=4%29\"
\n" ); document.write( "Now use either equation to solve for \"y\".
\n" ); document.write( "\"x%2B2%284%29=7\"
\n" ); document.write( "\"x%2B8=7\"
\n" ); document.write( "\"highlight%28x=-1%29\"
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\n" ); document.write( "Next system, multiply the second equation by (-5) and add them together to eliminate \"x\".
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\n" ); document.write( "Last system, multiply the first equation by (4) add add them together to eliminate \"y\".
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