3x/4-3=9 - solution

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Solution for 3x/4-3=9 equation:

x in (-oo:+oo)

(3*x)/4-3 = 9 // - 9

(3*x)/4-9-3 = 0

3/4*x-12 = 0 // + 12

3/4*x = 12 // : 3/4

x = 12/3/4

x = 16

x = 16

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