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The sum of three times Annabell's age plus her mother's age is 42. He
mother is 6 more than 6 times Annabell's age. How old is Annabell?

Respuesta :

msvivinguyen

Answer:

4

Step-by-step explanation:

First you have to analyze the word equations. Let x equal to Annabell's age and y equal her mother's age

3x + y = 42

6 + 6x = y

Then you use substitution to find x

3x + 6 + 6x = 42

9x = 36

x = 4

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