document.write( "Question 470825: Solve each system of equations by the elimination method.\r
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document.write( "-5x+4y=14
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document.write( "-6x+8y=14\r
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document.write( "a.(7/8,7/2)
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document.write( "b.(-7/8,-7/2)
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document.write( "c.(-7/32,-7/8)
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document.write( "d.(-77/8,21/2) \n" );
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Algebra.Com's Answer #322953 by hinaahsan(5) ![]() You can put this solution on YOUR website! -5x+4y=14--> 1 \n" ); document.write( "-6x+8y=14-->2 \n" ); document.write( " using 1, \n" ); document.write( "4y=14+5x \n" ); document.write( "y=(14+5x)/4-->3\r \n" ); document.write( "\n" ); document.write( "using value of y in 2 \n" ); document.write( " -6x + 8(14+5x)/4=14 \n" ); document.write( "-(24x+112+40x)/4 =14 \n" ); document.write( "-24x+112+40x= 4*14 \n" ); document.write( "-24x+112+40x=56 \n" ); document.write( "16x=56-112 \n" ); document.write( "16x=-56 \n" ); document.write( "x=-56/16 \n" ); document.write( "x=-7/2\r \n" ); document.write( "\n" ); document.write( "using value of x in 3 \n" ); document.write( "y={14+5(-7/2)}/4 \n" ); document.write( "4y=28-35/2 \n" ); document.write( "8y=-7 \n" ); document.write( "y=-7/8\r \n" ); document.write( "\n" ); document.write( "ans: (-7/8, -7/2) \n" ); document.write( " |