document.write( "Question 806781: Solve each system by addition, if possible\r
\n" ); document.write( "\n" ); document.write( "Having trouble understanding this.\r
\n" ); document.write( "\n" ); document.write( "x + y = 1
\n" ); document.write( "x - y = 7\r
\n" ); document.write( "\n" ); document.write( "Do I add it together like this:\r
\n" ); document.write( "\n" ); document.write( "x + y = 1
\n" ); document.write( "x - y = 7
\n" ); document.write( "--------------
\n" ); document.write( "2x = 8\r
\n" ); document.write( "\n" ); document.write( "Then, should I divide it like this:\r
\n" ); document.write( "\n" ); document.write( "8/2x = 4
\n" ); document.write( "

Algebra.Com's Answer #486016 by richwmiller(17219)\"\" \"About 
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\n" ); document.write( "2x=8
\n" ); document.write( "x=8/2
\n" ); document.write( "x=4
\n" ); document.write( "then go back and find y
\n" ); document.write( "x+y=1
\n" ); document.write( "4+y=1
\n" ); document.write( "y=-3\r
\n" ); document.write( "\n" ); document.write( "
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