Answer:
Avery is 6 years old
Step-by-step explanation:
gramma= 4(3A)
Sheridan= 3A
Avery=A
A+3A+12A=96
16A=96
divide by 16
A=6
The age of Sherdian's brother Avery is 6.
Algebra is the study of mathematic symbols.
Grandma exists exactly four times as old as Sheridan
then the age of grandma = 4(3A)
Sheridan exists three times as old as his brother Avery
Then, the age of Sheridan = 3A
Avery be A
The sum of their ages exists at 96.
A + 3A + 12A = 96
Adding similar elements
16A = 96
dividing both sides of the equation by 16
A = 6
Therefore, the age of Avery is 6.
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