Freddy is 4 years older than 8 times his grandson age the sum of their ages is greater than 67 What is the youngest age Freddy’s grandson can be
Mathematics · Middle School · Mon Jan 18 2021
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Given the statement:
Freddy is 4 years older than 8 times his grandson age the sum of their ages is greater than 67.
Determine the age of Freddy's grandson.
Solution:
In order to determine the age of Freddy's grandson, we simply needed to equate first the values in a representation.
x = Grandson's age
4 + 8x = Freddy's age
Equate the given in a representation, whereas the equivalent value is 76
x + 8x + 4 = 67
To find the answer, we solve for x.
Combine similar terms, and transpose 4 to the other side of the equation, hence it must be taken to note that int transposing a number the sign changes.
9x + 4 = 67
9x = 67 - 4
9x = 63
Divide both sides by 9 in order to determine the value of x.
9x/9 = 63/9
x= 7
Final answer:
Freddy's grandson is 7 years old.