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Solve by elimination method
\n" ); document.write( "5x + 5y = -13
\n" ); document.write( "7x - 2y = 17
\n" ); document.write( "----------------
\n" ); document.write( "Multiply the eqns by something to get the same coefficient for either x or y:
\n" ); document.write( "10x + 10y = -26 eqn 1 x 2
\n" ); document.write( "35x - 10y = 85 eqn 2 x 5
\n" ); document.write( "---------------Add
\n" ); document.write( "45x = 59
\n" ); document.write( "x = 59/45
\n" ); document.write( "---------
\n" ); document.write( "Sub for x in eqn 1:
\n" ); document.write( "59/9 + 5y = -13 = -117/9
\n" ); document.write( "5y = -176/9
\n" ); document.write( "y = -176/45
\n" ); document.write( "--------------
\n" ); document.write( "--------------
\n" ); document.write( "Solve by the elimination method
\n" ); document.write( "x + 7y = 8
\n" ); document.write( "-x + 5y = 4
\n" ); document.write( "---------------- Add them, do it like the first one.
\n" ); document.write( " \n" ); document.write( "