document.write( "Question 200119: -x+4y=-11
\n" ); document.write( "2x+4y=-2
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #150490 by checkley77(12844)\"\" \"About 
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-x+4y=-11 multiply this equation by 2 & add them
\n" ); document.write( "2x+4y=-2
\n" ); document.write( "-2x+8y=-22
\n" ); document.write( "--------------
\n" ); document.write( "12y=-24
\n" ); document.write( "y=-24/12
\n" ); document.write( "y=-2 ans.
\n" ); document.write( "2x+4*-2=-2
\n" ); document.write( "2x-8=-2
\n" ); document.write( "2x=-2+8
\n" ); document.write( "2x=6
\n" ); document.write( "x=6/2
\n" ); document.write( "x=3 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "2*3+4*-2=-2
\n" ); document.write( "6-8=-2
\n" ); document.write( "-2=-2 \n" ); document.write( "
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