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{ [ (3t + 2) + (2t + 3)] + 4} = 15
{[ 3t + 2 + 2t + 3] + 4} = 15
{ 5t + 5 + 4} = 15
5t + 9 = 15
5t = 15 - 9
5t = 6
t = 6/5
Tespuesta.
t = 6/5