qattoush13 qattoush13

03-12-2020
Mathematics

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GIVING 11 POINTS FOR THIS!! PLEASE I NEED AN ANSWER FOR MY ASSIGNMENT THATS DUE IN 10 MINUTES! Mary is 21 years old. Her age is 9 years more than 3 times Harry’s age. Which equation can be used to determine x, Harry’s age in years?

Respuesta :

xxsunflxwerxx2626 xxsunflxwerxx2626

03-12-2020

Answer:

Answer:4

Step-by-step explanation:

21=3x+9

12=3x

X=4

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