document.write( "Question 789348: Solve the system of linear equations-\r
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document.write( "3/2x - 1/3y= -18
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document.write( "3/4x + 2/9y= -9 \n" );
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Algebra.Com's Answer #478834 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 3/2x - 1/3y= -18\r \n" ); document.write( "\n" ); document.write( "multiply by 6 \n" ); document.write( "9x-3y=-18*6 \n" ); document.write( "9x-2y=-108\r \n" ); document.write( "\n" ); document.write( "3/4x + 2/9y= -9\r \n" ); document.write( "\n" ); document.write( "Multiply by 36\r \n" ); document.write( "\n" ); document.write( "27x+8y= 36*-9\r \n" ); document.write( "\n" ); document.write( "9 x -2 y = -108 .............1 \n" ); document.write( "Total value \n" ); document.write( "27 x + 8 y = -324 .............2 \n" ); document.write( "Eliminate y \n" ); document.write( "multiply (1)by 4 \n" ); document.write( "Multiply (2) by 1 \n" ); document.write( "36 x -8 y = -432 \n" ); document.write( "27 x + 8 y = -324 \n" ); document.write( "Add the two equations \n" ); document.write( "63 x = -756 \n" ); document.write( "/ 63 \n" ); document.write( "x = -12 \n" ); document.write( "plug value of x in (1) \n" ); document.write( "9 x -2 y = -108 \n" ); document.write( "-108 -2 y = -108 \n" ); document.write( " -2 y = -108 + 108 \n" ); document.write( " -2 y = 0 \n" ); document.write( " y = 0 \n" ); document.write( " \n" ); document.write( " |