How old am I of 400 reduced by 2 times my age is 224

How old am I of 400 reduced by 2 times my age is 224

1. Let my age be a.
2. 2 times my age: 2a
3. 400 reduced by 2 times my age: 400 - 2a
4. The phrase is means an equation. So we set 400 - 2a equal to 224 for our algebraic expression

400 - 2a = 224

If the problem asks you to solve for a, we type this equation into our search engine and we get:
a = 88