document.write( "Question 428381: 5x + 4y = 40
\n" ); document.write( "x + 2y = 11 \n" ); document.write( "

Algebra.Com's Answer #297789 by mananth(16946) $\"\"$ $\"About$

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x+4y=40 .............1
\n" ); document.write( "x+2y=11 .............2
\n" ); document.write( "
\n" ); document.write( "multiply (1)by 1
\n" ); document.write( "Multiply (2) by -2
\n" ); document.write( "x+4y=40
\n" ); document.write( "-2x-4y=-22
\n" ); document.write( "
\n" ); document.write( "Add the two equations
\n" ); document.write( "x=-18
\n" ); document.write( "
\n" ); document.write( "plug value ofxin (1)
\n" ); document.write( "
\n" ); document.write( "x+4y=40
\n" ); document.write( "-18+4y=40
\n" ); document.write( "4y=40+18
\n" ); document.write( "4y=58
\n" ); document.write( "y=14.50
\n" ); document.write( " \n" ); document.write( "

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