# Question #b36cf

##### 1 Answer

Jun 29, 2016

#### Answer:

Suzan 15

Juan 46

Ali 23

#### Explanation:

Call x --> Suzan's messages

Call y --> Juan's messages

Call z --> Ali's messages

We have these 3 equations:

(1) x + y + z = 84

(2) y = 2z

(3) x = z - 8

Replace (2) and (3) in (1).

(z - 8) + 2z + z = 84

4z = 84 + 8 = 92

z = 23

y = 46

x = 23 - 8 = 15