document.write( "Question 351041: solve the systen by the addition method\r
\n" ); document.write( "\n" ); document.write( "x+3y=13
\n" ); document.write( "-x+6y=14\r
\n" ); document.write( "\n" ); document.write( "what is the solution set?
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Algebra.Com's Answer #250902 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
x+3y=13
\n" ); document.write( "-x+6y=14
\n" ); document.write( "----------- Add them
\n" ); document.write( "9y = 27
\n" ); document.write( "You can finish it.
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