document.write( "Question 456599: How do I substitute a problem like this?\r
\n" ); document.write( "\n" ); document.write( "y = x + 3
\n" ); document.write( "y = 2x + 12
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Algebra.Com's Answer #853416 by timofer(139)\"\" \"About 
You can put this solution on YOUR website!
The two expressions for y are equal. How do you substitute? Simple! \n" ); document.write( "
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