Respuesta :

bellasmith1113

Answer:13-x= y

Step-by-step explanation:

Answer:

a = 13 - x

Step-by-step explanation:

Age = a

(Any other letter of substitution for age would be fine)

For example if x was 5 :

a = 13 - 5

a = 8

For further study:

  • Research algebra on either website. (eg: Maths Is Fun, Khan Academy...)

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