3(7t+9)=-120

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Solution for 3(7t+9)=-120 equation: 


t in (-oo:+oo)

3*(7*t+9) = -120 // + 120

3*(7*t+9)+120 = 0

3*(7*t+9)+120 = 0

21*t+147 = 0

21*t+147 = 0

21*t+147 = 0 // - 147

21*t = -147 // : 21

t = -147/21

t = -7

t = -7

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