(3x+7)/4+(x+53)/7=12

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Solution for (3x+7)/4+(x+53)/7=12 equation: 


x in (-oo:+oo)

(3*x+7)/4+(x+53)/7 = 12 // - 12

(3*x+7)/4+(x+53)/7-12 = 0

(7*(3*x+7))/(4*7)+(4*(x+53))/(4*7)+(-12*4*7)/(4*7) = 0

7*(3*x+7)+4*(x+53)-12*4*7 = 0

25*x-336+261 = 0

25*x-75 = 0

(25*x-75)/(4*7) = 0

(25*x-75)/(4*7) = 0 // * 4*7

25*x-75 = 0

25*x-75 = 0 // + 75

25*x = 75 // : 25

x = 75/25

x = 3

x = 3

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