Answers

  • Brainly User
2014-08-20T21:38:14+05:30
X/2-x/3+x/4=a/6-a/12a/20
taking lcm     (6x-4x+3x)/12=(10a-5a+3a)/60
orr5x/12=8a/60
or x=8a/25
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thanq soooooooooooo much
Comment has been deleted
ok
2014-08-20T22:00:13+05:30

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 \frac{1}{2} [ x -  \frac{a}{3} ] -  \frac{1}{3} [x -  \frac{a}{4} ] +  \frac{1}{4} [ x -  \frac{a}{5} ]  = 0  \\  \\
x [ \frac{1}{2} - \frac{1}{3} +  \frac{1}{4} ] + a [ - \frac{1}{2} * \frac{1}{3} + \frac{1}{3} * \frac{1}{4} - \frac{1}{4} * \frac{1}{5} ]   \\ \\ 
x [  \frac{6 - 4 + 3}{12} ] + a [ - \frac{1}{6} +  \frac{1}{12} -  \frac{1}{20} ]  = 0 \\ \\ 
x  \frac{5}{12} - a  \frac{-10+5-3}{60}  = 0  \\ \\ 
 \frac{5}{12} x =  \frac{-8}{60} a \\ \\ 
x = -  \frac{8*12}{5*60} a \ = - 8 a /25

answer is - 8 a / 25

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