(3x+3)/7=12

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


x in (-oo:+oo)

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

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

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

3*x-12*7+3 = 0

3*x-81 = 0

(3*x-81)/7 = 0

(3*x-81)/7 = 0 // * 7

3*x-81 = 0

3*x-81 = 0 // + 81

3*x = 81 // : 3

x = 81/3

x = 27

x = 27

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