There are 216 students in a class. There are 18 more boys than girls. How many boys are there?

Question

could you please answer this

Answer 1

Let x = # of girls

Let x+18 = # of boys

# of girls + # of boys = Total number in the class

x + (x+18) = 216

Now need to solve.

Combine like terms

2x + 18 = 216

Subtract 18 from both sides and simplify

2x + 18 - 18 = 216 - 18

2x = 198

Divide both sides by 2 and simplify

2x/2 = 198/2

x = 99

The number of girls in the class is 99

Let x+18 = # of boys

99+18 = 117

The number of boys in class is 117