document.write( "Question 847403: solve by elimination method\r
\n" ); document.write( "\n" ); document.write( "4x+3/5-2-3y/4=x+y
\n" ); document.write( "5x/6+ 3y/4=2x+4y+3
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #510439 by Alan3354(69443) $\"\"$ $\"About$

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solve by elimination method\r
\n" ); document.write( "\n" ); document.write( "4x+3/5-2-3y/4=x+y
\n" ); document.write( "5x/6+ 3y/4=2x+4y+3
\n" ); document.write( "--------------
\n" ); document.write( "4x - 7/5 - 3y/4 = x + y
\n" ); document.write( "-7x/6 - 13y/4 = 3
\n" ); document.write( "-------------
\n" ); document.write( "3x - 7y/4 = 7/5
\n" ); document.write( "-14x - 39y = 36
\n" ); document.write( "---------------
\n" ); document.write( "12x - 21y = 28/5
\n" ); document.write( "14x + 39y = -36
\n" ); document.write( "-------------
\n" ); document.write( "84x - 147y = 196/5
\n" ); document.write( "84x + 234y = -216
\n" ); document.write( "---------------------- Subtract
\n" ); document.write( "-381y = 1276/5
\n" ); document.write( "y = -1276/1905
\n" ); document.write( "======================
\n" ); document.write( "12x - 21y = 28/5
\n" ); document.write( "12x - 21*(-1276/1905) = 28/5
\n" ); document.write( "12x + 26796/1905 = 10668/1905
\n" ); document.write( "12x = -16128/1905 = -1792/127
\n" ); document.write( "x = -1792/1524
\n" ); document.write( "x = -448/381 \n" ); document.write( "

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