document.write( "Question 449433: Solve by the elimination method.\r
\n" ); document.write( "\n" ); document.write( "7x+9y=44
\n" ); document.write( "5x-9y=-92\r
\n" ); document.write( "\n" ); document.write( "What is the solution of the system? Select the correct choice and, if necessary, fill in the answer box to complete choice.\r
\n" ); document.write( "\n" ); document.write( "A. The solution is ____?
\n" ); document.write( "B. There are infiniely many solutions.
\n" ); document.write( "C. There is no solution \n" ); document.write( "
Algebra.Com's Answer #309215 by mananth(16946)\"\" \"About 
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7x+9y=44 .............1
\n" ); document.write( "5x-9y=-92 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 1
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "7x+9y=44
\n" ); document.write( "5x-9y=-92
\n" ); document.write( "Add the two equations
\n" ); document.write( "12x=-48
\n" ); document.write( "/12
\n" ); document.write( "x=-4
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "7x+9y=44
\n" ); document.write( "-28+9y=44
\n" ); document.write( "9y=44+28
\n" ); document.write( "9y=72
\n" ); document.write( "y=8
\n" ); document.write( " \n" ); document.write( "
\n" );