1. The problem asks to find the first term of a Fibonacci-type sequence where the first two terms can be any numbers, and each subsequent term is the sum of the two previous terms. 2. The standard Fibonacci sequence starts with $0$ and $1$, and each term is given by the formula: $$F_n = F_{n-1} + F_{n-2}$$ where $F_1 = 0$ and $F_2 = 1$. 3. For a Fibonacci-type sequence, we start with any two numbers $a$ and $b$ as the first two terms: $$T_1 = a, \quad T_2 = b$$ Then each term is: $$T_n = T_{n-1} + T_{n-2}$$ 4. Since the problem asks to find the first term of such a sequence by trying different numbers, the first term is simply the starting number $a$. 5. Without additional constraints or values, the first term can be any number chosen to start the sequence. Therefore, the first term in a Fibonacci-type sequence is the initial number you choose to start the sequence with, denoted as $a$. Final answer: The first term is $a$, the chosen starting number.