Question

в баскетбольній секції учнів в 3 рази більше, ніж у секції шахів. скількі учнів у секції шахів, якщо їй там на 18 менше, ніж в баскетбольній?Помогите решить с помощью уравнения!!!

Answer 1

Шахи - х уч
баскет - 3х уч
3х=х+18
3х-х=18
2х=18
х=18:2
х=9 уч - в шахм секц
3*9=27 уч - в баскетб секц

Answer 2

В шахматах х уч.,а в баскетбольной-3х
значит 2х=18
           х=9 уч.
значит у шахматов - 9 уч

Answer 3

Problem Analysis

We are given that the number of students in the basketball section is three times greater than the number of students in the chess section. We also know that the chess section has 18 fewer students than the basketball section. We need to find the number of students in the chess section.

Solution

Let's assume the number of students in the chess section is x. According to the given information, the number of students in the basketball section is three times greater than the number of students in the chess section. Therefore, the number of students in the basketball section is 3x.

We are also given that the chess section has 18 fewer students than the basketball section. This can be expressed as:

3x - 18 = x

To solve this equation, we can subtract x from both sides:

2x - 18 = 0

Next, we can add 18 to both sides:

2x = 18

Finally, we can divide both sides by 2 to solve for x:

x = 9

Therefore, there are 9 students in the chess section.

Answer

There are 9 students in the chess section.