document.write( "Question 496723: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this.
\n" ); document.write( "-x + 6y = 54
\n" ); document.write( "3x + y = 9
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Algebra.Com's Answer #336534 by mananth(16946)\"\" \"About 
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-1 x + 6 y = 54 .............1
\n" ); document.write( "1 y = 9 -3 x ---------2
\n" ); document.write( "/ 1 =
\n" ); document.write( " y = 9 -3 x
\n" ); document.write( "Substitute y in (1)
\n" ); document.write( "-1 x + 6 ( 9 -3 x ) = 54
\n" ); document.write( "-1 x + 54 + -18 x = 54
\n" ); document.write( "-1 x -18 x = 54 -54
\n" ); document.write( "-19 x = 0
\n" ); document.write( "/ -19
\n" ); document.write( "x= 0
\n" ); document.write( "Plug the value of x in (1)
\n" ); document.write( "-1 x + 6 y = 54
\n" ); document.write( "-1 * 0 + 6 y = 54
\n" ); document.write( "0 + 6 y = 54
\n" ); document.write( "6 y = 54
\n" ); document.write( "/ 6
\n" ); document.write( "y= 9 \r
\n" ); document.write( "\n" ); document.write( "Solution (0,9)
\n" ); document.write( "m.ananth@hotmail.ca
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