document.write( "Question 343602: how do you solve the system of equations by graphing. The question is x+y=7 and x-y=-1 \n" ); document.write( "

Algebra.Com's Answer #245987 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Add the equations together.
\n" ); document.write( " $\"x%2By%2Bx-y=7-1\"$
\n" ); document.write( " $\"2x=6\"$
\n" ); document.write( " $\"highlight%28x=3%29\"$
\n" ); document.write( "Now use either equation to solve for y.
\n" ); document.write( " $\"3%2By=7\"$
\n" ); document.write( " $\"highlight%28y=4%29\"$
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