document.write( "Question 64814: Please help me with this simultaneous equation
\n" ); document.write( "x+2y=5
\n" ); document.write( "3x+y=5 \n" ); document.write( "
Algebra.Com's Answer #45331 by tutorcecilia(2152)\"\" \"About 
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x+2y=5
\n" ); document.write( "-2(3x+y=5) [multiply through by (-2) in order to eliminate the y term]
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\n" ); document.write( "+1x+2y=5
\n" ); document.write( "-6x-2y=-10
\n" ); document.write( "_________
\n" ); document.write( "-5x+0y=-5
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\n" ); document.write( "-5x=-5 [solve for x]
\n" ); document.write( "x=1 [plug into either original equation and solve for y]
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\n" ); document.write( "x+2y=5
\n" ); document.write( "(1)+2y=5
\n" ); document.write( "1+2y=5
\n" ); document.write( "2y=4
\n" ); document.write( "y=4/2
\n" ); document.write( "y=2
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\n" ); document.write( "Check by plugging in the x and y values into either equation.
\n" ); document.write( "3x+y=5
\n" ); document.write( "3(1)+(2)=5
\n" ); document.write( "3+2=5
\n" ); document.write( "5=5 [checks out]\r
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