Question

Izan's youngest relative is 7 years old. This is 77 years less than the age of his oldest relative. Let a represent the age of his oldest relative. Write a subtraction equation that could be used to find the age of his oldest relative. Use 7, 77, and a.

Answer 1

The subtraction equation to find the age of Izan's oldest relative is a - 77 = 7, where a represents the oldest relative's age.

Step-by-step explanation:

To express the relationship between Izan's youngest and oldest relatives' ages using the variable a for his oldest relative's age, we set up the following subtraction equation:

a - 77 = 7

This equation means that if we subtract 77 years from the age of Izan's oldest relative, we will get the age of his youngest relative, which is 7 years old.