document.write( "Question 568940: Ok So my question is very simple
\n" ); document.write( "X-Y=3
\n" ); document.write( "X+Y=7
\n" ); document.write( "After I put it in slope intercept form I get
\n" ); document.write( "-Y=-X+7
\n" ); document.write( "Y=-X+3
\n" ); document.write( "Ho do I get rid of that negative Y? \n" ); document.write( "
Algebra.Com's Answer #367166 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
x - y = 3
\n" ); document.write( "subtract x from both sides of the equation to get:
\n" ); document.write( "-y = -x + 3
\n" ); document.write( "multiply both sides of the equation by -1 to get:
\n" ); document.write( "y = x - 3\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "that's one way.
\n" ); document.write( "here's another way.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "x - y = 3
\n" ); document.write( "add y to both sides of the equation to get:
\n" ); document.write( "x = y + 3
\n" ); document.write( "subtract 3 from both sides of the equation to get:
\n" ); document.write( "x - 3 = y
\n" ); document.write( "by the laws of commutation, if a = b then b = a which allows you to make the equation be equal to:
\n" ); document.write( "y = x - 3\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );