Question

4(-3x-5)-(10+4x)

Can someone simplify it?

Answer 1

Firstly, what you want to do is open the brackets up. so do that and show me what you get

Answer 2

I don't really know what you are asking. That is exactly like it is.

Answer 3

Okay what I mean is, first you want to expand the brackets so these things "( )", do you know how to do that?

Answer 4

4(-3x-5)-(10+4x)


First, multiply 4 by (-3x - 5) and multiply "-", which is just -1, by (10 + 4x)
So... -12x - 20 - 10 - 4x

All I did was multiply 4(-3x - 5) by 4 and I made everything in -(10 + 4x) negative because it had a negative sign in front of it, which is understood to just be -1.

Your next step is to add like terms.

Answer 5

Like ( -3x - 5)

Like expand it? Oh gosh

Answer 6

-16x - 30?

Answer 7

-12x - 20 - 10 - 4x
-12x - 4x - 20 - 10
-16x - 30

Yup! Correcto.

Answer 8

I got that, but it looked wrong. It's just so short. Is it always that short?

Answer 9

Like when I was doing it before

Answer 10

Mhm! Sometimes it's even shorter! Sometimes it's just x. or -x.

Answer 11

I have one more, and I don't get it at all. Would you help me with that one too?

Answer 12

(4x-9)+8(2x+3)-7x

Answer 13

I got it to around -24x - 12 but that isn't an answer on the sheet

(It is one of those horrible joke homework papers, where the answers correspond to a letter)

Answer 14

@Compassionate ?

Answer 15

(4x-9)+8(2x+3)-7x


So (4x - 9) + 8(2x + 3) - 7x

4x - 9 comes out of the brackets because there is nothing in front of it
If it were 2(4x - 9), we could do something with it, but in this case, we can't

So now we have 4x - 9 + 8(2x + 3) - 7x
Now, we CAN do something with our 8(2x + 3) (And it's called MULTIPLICATION) \[4x - 9 + (8 \times 2x) + (8 \times 3) - 7x\] We are basically multiplying 8 by everything inside of (2x + 3)

So we now have... 4x - 9 + 16x + 24 - 7x

Now we just add like terms

Answer 16

13x + 15?

Wow I was far.

Answer 17

Thank you SO much by the way!

Answer 18

Yup! Good job, man! I gotta go. Don't forget to fan me if you want to keep track of me and get ahold of me when you want to. I gotta go. TTYL

Answer 19

(I fanned you and medaled you too! You are literally the best)