It is a mulit- step equation
in Other Math Topics by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

Let Brantley’s age be B then Amanda is B+3 years old and Carlos is 2(B+3) years old.

The sum is B+3+B+2(B+3)=57.

So 4B+9=57, 4B=48, and B=12, so Amanda is B+3=15 years old.

by Top Rated User (642k points)

Related questions

Welcome to, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
82,894 questions
87,502 answers
3,946 users