document.write( "Question 197681: I am homeschooled witht the School of Tomorrow. I am doing Algebra 1, working on the section \"Solving Simultaneous Equations Algebraically\", the lesson \"More About the Substitution Method.\" I am having a hard time with problems like this one:
\n" ); document.write( "\"x-y=-1\"
\n" ); document.write( "\"x-2y=5\"
\n" ); document.write( "I'm very grateful for your help. \n" ); document.write( "
Algebra.Com's Answer #148231 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
1st) x-y = -1\r
\n" ); document.write( "\n" ); document.write( "2nd) x-2y=5
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\n" ); document.write( "Solve the 1st Eq. for \"x\":
\n" ); document.write( "x = y -1
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\n" ); document.write( "Substitute that into the 2nd equation to solve for \"y\":
\n" ); document.write( "y-1 - 2y = 5
\n" ); document.write( "-y = 6
\n" ); document.write( "y = -6
\n" ); document.write( "--------------
\n" ); document.write( "Substitute into x = y -1 to solve for \"x\":
\n" ); document.write( "x = -6 -1
\n" ); document.write( "x = -7
\n" ); document.write( "=======================
\n" ); document.write( "Solution: x = -7 ; y = -6
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