Answer:
The numerical expression that can be used to find Luis's age is:
y = x + 4
y = 14 + 4
y = 18 years
Step-by-step explanation:
Let us represent:
Clara's age = x
Luis's age = y
Clarissa is 14 years old. Her brother, Luis, is 4 years more her age.
Hence , the numerical expression that can be used to find Luis's age is:
y = x + 4
y = 14 + 4
Therefore, Luis's age is 18 years