Question

I Need some help

Answer 1

Twice the difference of a number and 8. This says we are going to be doing what 2 operations on the left side of the equation?

Answer 2

Adding and subtracting ?

Answer 3

You have subtracting correct, the difference, but what would twice mean?

Answer 4

Times it ?

Answer 5

Yes, multiply by 2

Answer 6

Now, the difference of a number and 8. x represents the number, so (x - 8)

Answer 7

And we need twice the difference of a number and 8, so 2*(x-8)

Answer 8

That is the left side of the equation.

Answer 9

i'm sorry can you draw that out for me?

Answer 10

Where do you not understand?

Answer 11

The first part

Answer 12

The difference of a number and 8?

Answer 13

Yes :)

Answer 14

Ok, for this, let's just use a number in place of x. Let's say that our number is 11. If I said, write an equation for the difference of 11 and 8, what would you write?

Answer 15

I would write 3

Answer 16

What would you write before 3? blank - blank = 3

Answer 17

I'm sorry i have a very hard time understanding math

Answer 18

It's fine :) We have the difference of 11 and 8, so to get to 3, do we do 11-8 or 8-11 to get to 3?

Answer 19

O yes! i used 8-11

Answer 20

8 - 11 would give -3 though

Answer 21

I just took off the - lol

Answer 22

Ok, the difference of 11 and 8 would be 11 - 8. If they say the difference of 11, that means the equation is going to be 11 -, then whatever number they say after that.

Answer 23

Ok :)

Answer 24

They say the difference of a number (x) and 8, so x - 8

Answer 25

Ok, they also put twice, so 2(x - 8). That completes the left side.

Answer 26

is equal to, =
Now we have 3 times the sum of the number (x) and 6.

Answer 27

So its either C or D now I see i think it will be C because they are both neg

Answer 28

You are correct on either C or D, but what does sum mean?

Answer 29

Ahh to add!

Answer 30

Yes!

Answer 31

So its D!

Answer 32

Yep, now the other part of the question is to find x.

Answer 33

So solve D's equation ?

Answer 34

Yep, do you know how to do that?

Answer 35

Kinda can you walk me thought it ?

Answer 36

Sure :) First we need to use the distributive property to distribute 2 and 3

Answer 37

Is this right ?

Answer 38

We need to distribute first :0

Answer 39

I hate that part its when i take the 2 to each side right ?

Answer 40

Multiply 2*x and 2*-8 first.

Answer 41

So its 2x-16 ?

Answer 42

Yes, then distribute the 3 inside the parentheses :)

Answer 43

Can you write that out for me ?

Answer 44

What is inside the parentheses for the 3? x and +6

Answer 45

Yes :)