document.write( "Question 254370: Use the substitution method to solve the linear system given. Express
\n" ); document.write( " the answer as an ordered pair of the form (x,y)
\n" ); document.write( " x + y = 5
\n" ); document.write( " 2x + y = 6
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Algebra.Com's Answer #186807 by checkley77(12844)\"\" \"About 
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x + y = 5 or y=5-x
\n" ); document.write( "2x + y = 6
\n" ); document.write( "Now replace y in the second equation with (5-x) & solve for x.
\n" ); document.write( "2x+(5-x)=6
\n" ); document.write( "2x+5-x=6
\n" ); document.write( "x=6-5
\n" ); document.write( "x=1 ans.
\n" ); document.write( "y=5-1
\n" ); document.write( "y=4 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "2*1+4=6
\n" ); document.write( "2+4=6
\n" ); document.write( "6=6
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