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Alex, Bart, and Carl are brothers. Alex is the oldest and Carl is the youngest. The sum of the ages of the three brothers is 42. Alex's age is 3 more than twice Carl's age. The difference between Bart's and Carl's age is 7 years. Which system of equations could be used to determine the ages of all three brothers?

Respuesta :

noahscats11

A = Alex

B = Bart

C = Carl

B - C = 7

A + B + C = 42

C / 2 x 3 = A

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