Question

How do you combine like terms in `8u + 7u + 3u - 3u`?

Answer 1

Combine the like terms to get `15u`

Explanation:

Like terms are terms that have the same variable raised to the same power.

`8u`, `7u`, `3u`, and `-3u` are all like terms, as their shared variable is `u` raised to the first power.

We'd then add and subtract as if they were normal numbers.

`8+7+3-3=15`, but don't forget about the variable `u`, to get `15u`