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Ace's brother is 9 years older than three times his age. the sum of their ages is 57 .how old is Chris?

show me your equation and answer​

Respuesta :

Answer:

3x+9=57; Chris is 16 years old

Step-by-step explanation:

3x+9=57

Move the Constant to the right

3x=57-9

Calculate

3×=48

Divide both sides

x= 16

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