document.write( "Question 725638: Solve for x and y by deriving an expression for y from the second equation, and substituting it back into the first equation.\r
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Algebra.Com's Answer #444253 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Solve for x and y by deriving an expression for y from the second equation, and substituting it back into the first equation.\r
\n" ); document.write( "\n" ); document.write( "−2x+y−5x+y=−4=−8
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\n" ); document.write( "That makes no sense.
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