document.write( "Question 970390: Solve the system by addition/subtraction:\r
\n" ); document.write( "\n" ); document.write( "-x = -2y - 16\r
\n" ); document.write( "\n" ); document.write( "x + y = 4
\n" ); document.write( "

Algebra.Com's Answer #593016 by amarjeeth123(569)\"\" \"About 
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The given equations are
\n" ); document.write( "-x = -2y - 16..........equation 1
\n" ); document.write( "x + y = 4..............equation 2
\n" ); document.write( "Adding 1 and 2 we get,
\n" ); document.write( "-x+x+y=-2y-16+4
\n" ); document.write( "y+2y=-12
\n" ); document.write( "3y=-12
\n" ); document.write( "y=-4
\n" ); document.write( "x=8
\n" ); document.write( "
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