26
2x + 7 = 19
x = 6
The number is 121/2.
9
169
6
Answer: 11It's a list of prime numbersQ:.....since when is 9 a prime number?Answer: 17It's not a list of primes, it's not a Fibonacci sequence. The only pattern I see is that the last number in the sequence gets a number added to it to produce the next number in the sequence, the number that's added doubles each time. E.g. 2+1 = 3 (1 is added)3+2 = 5 (1 is doubled = 2, then added)5+4 = 9 (2 is doubled = 4, then added)9+8 = 17 (4 is doubled = 8, then added)
The number is 121/2.
6
1
A natural number is doubled when added to its reciprocal. Find that number!
9
169
Working from the information provided in the question, it could be any number at all.
6
120
24
Answer: 11It's a list of prime numbersQ:.....since when is 9 a prime number?Answer: 17It's not a list of primes, it's not a Fibonacci sequence. The only pattern I see is that the last number in the sequence gets a number added to it to produce the next number in the sequence, the number that's added doubles each time. E.g. 2+1 = 3 (1 is added)3+2 = 5 (1 is doubled = 2, then added)5+4 = 9 (2 is doubled = 4, then added)9+8 = 17 (4 is doubled = 8, then added)
If: 6x+8 = 32 Then: x = 4