document.write( "Question 176009: Solve the system by substitution.\r
\n" ); document.write( "\n" ); document.write( "y=2x-3
\n" ); document.write( "y=x-2
\n" ); document.write( "

Algebra.Com's Answer #131118 by checkley75(3666)\"\" \"About 
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y=2x-3
\n" ); document.write( "y=x-2
\n" ); document.write( "x-2=2x-3
\n" ); document.write( "x-2x=-3+2
\n" ); document.write( "-x=-1
\n" ); document.write( "x=1 ans.
\n" ); document.write( "y=2*1-3
\n" ); document.write( "y=2-3
\n" ); document.write( "y=-1 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "-1=1-2
\n" ); document.write( "-1=-1
\n" ); document.write( "
\n" );