document.write( "Question 1005687: solve the following system of equations for x:\r
\n" ); document.write( "\n" ); document.write( "2x+y=4
\n" ); document.write( "x-2y=7
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Algebra.Com's Answer #621837 by Alan3354(69443)\"\" \"About 
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solve the following system of equations for x:\r
\n" ); document.write( "\n" ); document.write( "2x+y=4
\n" ); document.write( "x-2y=7
\n" ); document.write( "==============
\n" ); document.write( "Multiply the 1st eqn by 2, then add.
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