3(21t/7)=12 - solution

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Solution for 3(21t/7)=12 equation:

t in (-oo:+oo)

3*((21*t)/7) = 12 // - 12

3*((21*t)/7)-12 = 0

9*t-12 = 0 // + 12

9*t = 12 // : 9

t = 12/9

t = 4/3

t = 4/3

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