Gabrielle's age is two times mikhail's age. the sum of their ages is 72 . what is mikhail's age?

18 y'all. Correct me if I'm wrong though.

Step-by-step explanation:

We are looking for Mikhail's age.

Mikhail's age =x

We are given that Gabrielle's age is three times Mikhail's age.

Gabrielle's age =3x

The sum of their ages is 72. We get the following.

Gabrielle's age+Mikhail's age=72  

3x+x=72  

4x=72  

x=18  

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step-by-step explanation:

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.