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(1/5)*((1/3)*x+47/3)+(1/3)*x = 4/15 // - 4/15
(1/5)*((1/3)*x+47/3)+(1/3)*x-(4/15) = 0
(1/5)*((1/3)*x+47/3)+(1/3)*x-4/15 = 0
1/5*(1/3*x+47/3)+x/3-4/15 = 0
(1/5*3*15*(1/3*x+47/3))/(3*15)+(15*x)/(3*15)+(-4*3)/(3*15) = 0
1/5*3*15*(1/3*x+47/3)+15*x-4*3 = 0
18*x-12+141 = 0
18*x+129 = 0
(18*x+129)/(3*15) = 0
(18*x+129)/(3*15) = 0 // * 3*15
18*x+129 = 0
18*x+129 = 0 // - 129
18*x = -129 // : 18
x = -129/18
x = -43/6
x = -43/6
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