document.write( "Question 49950: 2x+y=4
\n" ); document.write( "-2x+2y=12 \n" ); document.write( "
Algebra.Com's Answer #33195 by hulamc723(15)\"\" \"About 
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2x+y=4
\n" ); document.write( "-2x+2y=12\r
\n" ); document.write( "\n" ); document.write( "In the first equation solve for y (subtract 2x from both sides so you get
\n" ); document.write( "y=4-2x
\n" ); document.write( "Substitute the 4-2x in for y in the second equation
\n" ); document.write( "-2x+2(4-2x)=12 now solve for x
\n" ); document.write( "-2x+8-4x=12
\n" ); document.write( "-6x+8=12
\n" ); document.write( "-6x=4
\n" ); document.write( "x=-4/6
\n" ); document.write( "x=-2/3
\n" ); document.write( ":) \n" ); document.write( "
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