document.write( "Question 1002872: solve the simultaneous equations
\n" ); document.write( " 3x-2y=12
\n" ); document.write( " x+3y=-7 \n" ); document.write( "

Algebra.Com's Answer #619737 by mananth(16946) $\"\"$ $\"About$

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3 x -2 y = 12 .............1
\n" ); document.write( "Total value
\n" ); document.write( "1 x + 3 y = -7 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 3
\n" ); document.write( "Multiply (2) by 2
\n" ); document.write( "9 x -6 y = 36
\n" ); document.write( "2 x + 6 y = -14
\n" ); document.write( "Add the two equations
\n" ); document.write( "11 x = 22
\n" ); document.write( "/ 11
\n" ); document.write( "x = 2
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "3 x -2 y = 12
\n" ); document.write( "6 -2 y = 12
\n" ); document.write( " -2 y = 12 -6
\n" ); document.write( " -2 y = 6
\n" ); document.write( " y = -3
\n" ); document.write( "x= 2
\n" ); document.write( "y= -3
\n" ); document.write( "m.ananth@hotmail.ca
\n" ); document.write( " \n" ); document.write( "

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