document.write( "Question 352937: 4. Find x by solving for the system of equations using any method you prefer.
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document.write( "-8x+4y=9
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document.write( "3x=4y+6\r
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document.write( "A. 6
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document.write( "B. -3
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document.write( "C. 10
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document.write( "D. -15 \n" );
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Algebra.Com's Answer #253103 by sudhanshu_kmr(1152)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "-8x + 4y = 9 ............(1)\r \n" ); document.write( "\n" ); document.write( "3x = 4y + 6 , we can write it as 3x -4y = 6 .......(2)\r \n" ); document.write( "\n" ); document.write( "now adding these two equations\r \n" ); document.write( "\n" ); document.write( "-5x = 15 \r \n" ); document.write( "\n" ); document.write( "=> x = -3 \r \n" ); document.write( "\n" ); document.write( "y = [3(-3)-6 ]/ 4 = -15/4 \n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( "x = -3 \n" ); document.write( " |