Question

Сумма трьох чисел равняется 80.Первое число 26, второе на 5 больше чем первое.Чему равняется третье число? Большое спасибо

Answer 1

26+(26+5)+х=80
26+31+х=80
57+х=80
х=80-57
х=23

Answer 2

Problem Analysis

We are given three pieces of information: 1. The sum of three numbers is 80. 2. The first number is 26. 3. The second number is 5 more than the first number.

We need to find the value of the third number.

Solution

Let's solve the problem step by step.

1. We know that the sum of three numbers is 80. Let's assume the three numbers are A, B, and C. So we have the equation: A + B + C = 80

2. We are given that the first number is 26. So we can substitute A with 26 in the equation: 26 + B + C = 80

3. We are also given that the second number is 5 more than the first number. So we can substitute B with 26 + 5 in the equation: 26 + (26 + 5) + C = 80

4. Simplifying the equation, we get: 57 + C = 80

5. Subtracting 57 from both sides of the equation, we get: C = 80 - 57

6. Evaluating the expression, we find that the value of C is 23.

Therefore, the third number is 23.

Answer

The third number is 23.