Write a recursive formula for the sequence {10, 12, 14, 16, ...}. f(1) = 10, f(n) = f (n - 1) + 2, for n> 1

f(1) -2, f(n) = |(n-1) - 10, for n> 1

f(1) = 2, f (n) = f(n − 1) + 10, for n> 1

f(1) = 10, f (n) = f (n − 1) - 2, for n> 1​

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.