# How do you simplify #3+7i-3i-4#?

##### 1 Answer

Feb 8, 2017

#### Explanation:

When you are simplifying a polynomial, you have to remember that you are finding the LIKE TERMS. This means the i after the 7 and the other number with nothing after it are from two different families. Just like if you have a

Therefore we are going to join the like terms for this problem:

Then it is simple addition and subtraction

Putting them in one line and you will get:

Hope that answered your question :)