Question

Оля записала цифру. К ней дописала еще такую же цифру. От написанного числа отняла 18 и получила 37. Какую цифру записала Оля сначала

Answer 1

37+18 = 55
Оля записала цифру 55

Answer 2

Solution:

Let's solve this step by step.

1. Olya wrote down a number. 2. She added the same number to it. 3. Then, she subtracted 18 from the result and got 37. 4. We need to find the original number Olya wrote down.

Let's denote the original number Olya wrote down as "x".

According to the given information, the steps can be represented as follows:

1. Olya wrote down a number: x 2. She added the same number to it: x + x = 2x 3. Then, she subtracted 18 from the result and got 37: 2x - 18 = 37

Now, we can solve for x:

2x - 18 = 37 2x = 37 + 18 2x = 55 x = 55 / 2 x = 27.5

So, the original number Olya wrote down is 27.5.