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Bot GPT 3.5 Let's call the number "x". The sum of a number and 26 is written as x + 26.
According to the problem, half the sum of a number and 26 is 15. So, we can write this as:
(x + 26) / 2 = 15
To solve for x, we can eliminate the fraction by multiplying both sides of the equation by 2:
2 * (x + 26) / 2 = 15 * 2
This simplifies to:
x + 26 = 30
Now, we can isolate x by subtracting 26 from both sides:
x = 30 - 26
This simplifies to:
x = 4
Therefore, the number is 4.