document.write( "Question 253892: x=2y
\n" ); document.write( "y=x-2\r
\n" ); document.write( "\n" ); document.write( "solve using substitution.
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Algebra.Com's Answer #186237 by checkley77(12844)\"\" \"About 
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x=2y
\n" ); document.write( "y=x-2 replace x with (2y) in this equation *& solve for y
\n" ); document.write( "y=2y-2
\n" ); document.write( "y-2y=-2
\n" ); document.write( "-y=-2
\n" ); document.write( "y=-2/-1
\n" ); document.write( "y=2 ans.
\n" ); document.write( "x=2*2
\n" ); document.write( "x=4 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "2=4-2
\n" ); document.write( "2=2
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