Question

80 people attended a meeting. There was x men and x women and the rest were children. How many children attended the meeting

Answer 1

`Children = 80 - 2x`

Explanation:

Given

`Total = 80`

`Men = x`

`Women = x`

Required

Determine the number of children

This is calculated using:

`Total = Men + Women + Children`

Substitute values for Total, Men and Women

`80 = x + x+ Children`

`80 = 2x + Children`

Subtract 2x from both sides

`80 - 2x = 2x -2x + Children`

`80 - 2x = Children`

`Children = 80 - 2x`