-7t+4=81

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Solution for -7t+4=81 equation: 


t in (-oo:+oo)

4-7*t = 81 // - 81

4-7*t-81 = 0

-7*t-77 = 0 // + 77

-7*t = 77 // : -7

t = 77/(-7)

t = -11

t = -11

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