document.write( "Question 470825: Solve each system of equations by the elimination method.\r
\n" ); document.write( "\n" ); document.write( "-5x+4y=14
\n" ); document.write( "-6x+8y=14\r
\n" ); document.write( "\n" ); document.write( "a.(7/8,7/2)
\n" ); document.write( "b.(-7/8,-7/2)
\n" ); document.write( "c.(-7/32,-7/8)
\n" ); document.write( "d.(-77/8,21/2)
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Algebra.Com's Answer #322953 by hinaahsan(5)\"\" \"About 
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-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)
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