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what does (t-13)+(t-6)+99=180

Guest Feb 22, 2017
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You are Form 2? I am Form 3! :D

 

(t-13) + (t-6) + 99 = 180

(t - 13) + (t - 6) = 180 - 99 = 81

t - 13 + t - 6 = 81

2t - 19 = 81

2t = 81 + 19 = 110

t = 110/2 = 55 <- final answer.

MaxWong  Feb 22, 2017

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