<human>:  There is one set of twins and one set of triplets. One twin is 7 years older than one triplet. If their combined ages are 44, how old is one of the twins?
<bot>: Define a variable ** Let T = age of triplet
How old is each twin? ** Twin's age = T + <<+7=7>>7
What is the twins' combined age? ** Twin's combined age = 2 * (T + 7)
What is the triplets' combined age? ** Triplet's combined age = <<3=3>>3T
Write an equation ** 2 * (T + 7) + 3T = 44
Simplify ** 2T + 14 + 3T = 44
Simplify ** 5T + 14 = 44
Simplify ** 5T = 30
Simplify ** T = <<6=6>>6
How old is one of the twins? ** Twin = 6 + 7 = <<6+7=13>>13
How old is one of the twins? ** The twins are each <<13=13>>13 years old.
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