Question

My sister is 14 years old. my brother says that his age minus 12 equal to my sister's age.

Answer 1

26 years old.

Explanation:

First lets write an expression for this problem.

That will be 14 + 12 = x

You will do this because it says how the persons sister's age is 14. And the brother says that his age is 12 minus equal to his sister's age. So that's why you use that expression.

So 14 + 12 will give yo 26.

So that means the brother is 26 years old.