# How do you simplify #-3(4x-1)+9x+8x#?

##### 1 Answer

Just in case it is needed; I have explained about multiplying the bracket.

#### Explanation:

Further explanation about how to handle

Consider as an example

This means we have two of

That is

So

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Ok! carry that thought into

for a moment forget that this is multiplied by negative 3. Just think it as being multiplied by positive 3

So

Which is the same as

Which is the same as

Which is the same as

Which is the same as

Notice that you have ended up with the same expression as you would do if you multiplied every thing inside the bracket with 3

Now all you have to do is deal with the negative bit.