Stable High School has a total of 112 boys and girls who play sports. If the number of boys, b is 16 more than twice the number of girls, g, how many boys play sports at this high school?
80 boys play sport.
There are 112 students altogether.
This can also be written as
It is very useful to have variables as the subject of the equation when working with simultaneous equations. This allows for easy substituting or equating.
A common mistake is to add to the boys and to multiply the boys by 2. There are more boys! - do not make them even more.
There are now 2 equations.