3/7t+21=-15

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Solution for 3/7t+21=-15 equation: 


t in (-oo:+oo)

(3/7)*t+21 = -15 // + 15

(3/7)*t+15+21 = 0

3/7*t+36 = 0 // - 36

3/7*t = -36 // : 3/7

t = -36/3/7

t = -84

t = -84

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