64 is 4 times the difference between Sarah’s age a, and 44.Assume Sarah is older than 44

64 is 4 times the difference between Sarah’s age a, and 44.Assume Sarah is older than 44

Difference between Sarah's age (a) and 44 (Assuming Sarah is older than 44):
a - 44

4 times the difference:
4(a - 44)

The word is means equal to, so we set 4(a - 44) equal to 64 to get our algebraic expression:
4(a - 44) = 64

If the problem asks you to solve for a, we type this equation into our search engine and we get:
a = 60