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You can put this solution on YOUR website!
I need to solve this by the addition method.
\n" ); document.write( "3/7x+5/9y=27
\n" ); document.write( "1/9x+2/7y=7
\n" ); document.write( "------------------
\n" ); document.write( "Assuming you mean
\n" ); document.write( "(3x/7) + (5y/9) = 27
\n" ); document.write( "(x/9) + (2y/7) = 7
\n" ); document.write( "Multiply thru both by 63 to eliminate fractions.
\n" ); document.write( "27x + 35y = 1701
\n" ); document.write( " 7x + 18y = 441
\n" ); document.write( "Some big numbers, but easier to deal with than fractions.
\n" ); document.write( "To get the same coefficients for x, multiply the 1st eqn by 7, the 2nd by 27
\n" ); document.write( "189x + 245y = 11907
\n" ); document.write( "189x + 486y = 11907
\n" ); document.write( "-------------- Uhoh
\n" ); document.write( "Subtract 2 from 1
\n" ); document.write( "0x - 241y = 0
\n" ); document.write( "y = 0
\n" ); document.write( "x = 63
\n" ); document.write( "It does check, and fits both eqns
\n" ); document.write( " \n" ); document.write( "