document.write( "Question 56376: solve the system
\n" ); document.write( "3x+4y=40
\n" ); document.write( "x-2y=0 \n" ); document.write( "
Algebra.Com's Answer #38234 by scoop(27)\"\" \"About 
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3x+4y=40
\n" ); document.write( "x-2y=0
\n" ); document.write( "I would use the elimination method and get rid of the y variable:
\n" ); document.write( "3x+4y=40
\n" ); document.write( "(2)x-2y=0 leaving you with 2x-4y=0
\n" ); document.write( "then you simply add equations
\n" ); document.write( "3x+4y=40
\n" ); document.write( "2x-4y=0
\n" ); document.write( "5x=40 divide both sides by 5
\n" ); document.write( "x=8
\n" ); document.write( "to check...substitute 8 in expression for x
\n" ); document.write( "3(8)+4y=40
\n" ); document.write( "24+4y=40
\n" ); document.write( "4y=40-24
\n" ); document.write( "4y=16
\n" ); document.write( "y=4
\n" ); document.write( "24+16=40
\n" ); document.write( "8-8=0
\n" ); document.write( "you are correct!!! \n" ); document.write( "
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