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(x-5)/4-(x+6)/6 = (5x-5) /9

 Sep 10, 2015
 #1
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 Sep 10, 2015
edited by Landry  Sep 10, 2015
 #2
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(x-5)/4-(x+6)/6 = (5x-5) /9   multiply through by the common denominator of 4,6 and 9   = 36

 

9(x - 5)  - 6(x + 6)  = 4(5x - 5)   simplify

 

9x - 45 - 6x - 36  = 20x - 20  

 

3x - 81  = 20x - 20     add 81 to both sides and subtract 20x  from both sides

 

-17x = 61     divide both sides by -17

 

x = -61/17

 

 

cool cool cool

 Sep 10, 2015

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