document.write( "Question 92107: I am sorry I do not have my book with me. I am not sure I am solving these two equations correctly could you please help? \r
\n" ); document.write( "\n" ); document.write( "Solve each of the following systems by subtitution:
\n" ); document.write( "1st problem: \r
\n" ); document.write( "\n" ); document.write( "5x - 2y = -5
\n" ); document.write( "y - 5x = 3 \r
\n" ); document.write( "\n" ); document.write( "2nd problem:
\n" ); document.write( "4x - 12y = 5
\n" ); document.write( "-x + 3y = -1 \r
\n" ); document.write( "\n" ); document.write( "Thank you for your help.
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #66974 by anraymer(35)\"\" \"About 
You can put this solution on YOUR website!
For the first problem:
\n" ); document.write( "5x - 2y = -5
\n" ); document.write( "y - 5x = 3
\n" ); document.write( "

\n" ); document.write( "Choose one variable and isolate it. I chose 5x because I can substitute between both equations:
\n" ); document.write( "y - 5x = 3
\n" ); document.write( "-5x = -y + 3
\n" ); document.write( "5x = y - 3
\n" ); document.write( "Then substitute into the first equation:
\n" ); document.write( "5x - 2y = -5
\n" ); document.write( "(y - 3) -2y = -5
\n" ); document.write( "Now solve for y:
\n" ); document.write( "-y - 3 = -5
\n" ); document.write( "-y = -2
\n" ); document.write( "y = 2
\n" ); document.write( "Once you have y, you can now solve for x by plugging into either equation:
\n" ); document.write( "y - 5x = 3
\n" ); document.write( "(2) - 5x = 3
\n" ); document.write( "-5x = 1
\n" ); document.write( "x = -1/5 \n" ); document.write( "
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