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?
Solving gives 7 boys and 12 girls.
First write an expression for the number of boys and
another for the number of girls.
Let the number of boys be
The number of girls is
There are 19 students altogether.
(Boys + girls makes 19)
#2n + 5 = 19)
n = 7.