Math question help? thanks?

Question

room a has 7 people, room b has half of people in room c. room c has the number of people in a and b combined. howmany people are in a,b,c?

Answer 1

ya idont know...listen to the other peeps.

Answer 2

A has 7 people

B has b people

C has 7 + b people

We are given that B has half the people in C, so

               b = (7 + b)/2

              2b = 7 + b                  (Multiply 2 to both sides)

               b = 7                         (Simplify)

Therefore, A has 7, B has 7 and C has 7 + b = 7 + 7 = 14 people.

Answer 3

14:7-2=3.5

3.5+3.5+7=14

Answer 4

room a has 7 people

room b has 7 people

room c has 14 people