# A class of 19 pupils has five more girls than boys. Let n the number of boys. What would be the equation that expresses the total number of students?

Aug 2, 2016

$n + \left(n + 5\right) = 19$
Solving gives 7 boys and 12 girls.

#### Explanation:

First write an expression for the number of boys and
another for the number of girls.

Let the number of boys be $n$.
The number of girls is n+5" there are 5 more girls than boys"

There are 19 students altogether.
(Boys + girls makes 19)

$n + \left(n + 5\right) = 19$

#2n + 5 = 19)

$2 n = 19 - 5$

$2 n = 14$

n = 7.