document.write( "Question 251185: how do you solve linear systems by adding
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Algebra.Com's Answer #184110 by checkley77(12844) $\"\"$ $\"About$

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3X-4Y=12
\n" ); document.write( "2X+4Y=-2 NOW ADD.
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\n" ); document.write( "5X+0=10
\n" ); document.write( "5X=10
\n" ); document.write( "X=10/5
\n" ); document.write( "X=2 ANS.
\n" ); document.write( "3*2-4Y=12
\n" ); document.write( "6-4Y=12
\n" ); document.write( "-4Y=12-6
\n" ); document.write( "-4Y=6
\n" ); document.write( "Y=6/-4
\n" ); document.write( "Y=-1.S ANS.
\n" ); document.write( "PROOF:
\n" ); document.write( "2*2+4*-1.5=-2
\n" ); document.write( "4-6=-2
\n" ); document.write( "-2=-2 \n" ); document.write( "

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