document.write( "Question 327213: Solve by the addition method.
\n" ); document.write( "x-y=15
\n" ); document.write( "x+y=7 \n" ); document.write( "

Algebra.Com's Answer #234336 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Add the equations to eliminate y.\r
\n" ); document.write( "\n" ); document.write( " $\"x-y%2Bx%2By=15%2B7\"$
\n" ); document.write( " $\"2x=22\"$
\n" ); document.write( " $\"highlight%28x=11%29\"$
\n" ); document.write( "Then use either equation to solve for y.
\n" ); document.write( " $\"11%2By=7\"$
\n" ); document.write( " $\"highlight%28y=-4%29\"$ \n" ); document.write( "

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