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t in (-oo:+oo)
(1/2)*(t+7) = 32 // - 32
(1/2)*(t+7)-32 = 0
1/2*(t+7)-32 = 0
1/2*(t+7)-32 = 0
1/2*t-57/2 = 0
1/2*t-57/2 = 0
1/2*t-57/2 = 0 // + 57/2
1/2*t = 57/2 // : 1/2
t = 57/2/1/2
t = 57
t = 57
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