Answer :

Siri66





1) L.H.S = 1*1/3(6x+24) = 2x+8         ----------- eq.1
    R.H.S = -1/4(12x-72)+20 = -3x+38  -----------eq.2
Now equate L.H.S and R.H.S
   2x+8 = - 3x+38
2x+3x = 38-8
    5x   = 30
      x   =  30/5
      x   =   6
TPS
1.
[tex] \frac{1}{3}(6x+24)= \frac{-1}{4} (12x-72)+20[/tex]

⇒[tex] \frac{1}{3}*6x+ \frac{1}{3}*24= \frac{-1}{4}*12x- \frac{-1}{4}*(-72) +20 [/tex]

⇒[tex]2x + 8 = -3x+18+20[/tex]
⇒[tex]2x+3x=18+20-8[/tex]
⇒[tex]5x=30[/tex]
⇒[tex]x= \frac{30}{5}=6 [/tex]

2.
[tex] \frac{5}{6x} + \frac{3}{8x} =2+ \frac{1}{3x} [/tex]

⇒[tex] \frac{20+9}{24x} = \frac{6x+1}{3x} [/tex]

⇒[tex] \frac{29}{24x} = \frac{6x+1}{3x} [/tex]

⇒[tex]3x*29=24x*(6x+1)[/tex]
⇒[tex]87x=144 x^{2} +24x[/tex]
⇒[tex]87x-24x=144 x^{2}[/tex]
⇒[tex]63x=144x^{2}[/tex]

⇒ [tex]x= \frac{63}{144} [/tex]

[tex]x \neq 0 [/tex] as the denominator can't be zero.

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