Question

Please help!


When a certain number n is divided by 3, the result is the same as when n is decreased by 3 .what is n ?

Answer 1

\[ \large n\div3=n-3 \]

Answer 2

Help me please

Answer 3

@Jessie123456789
Okay, I'll help.

Answer 4

Thanks

Answer 5

How do we write these words in math symbols --> When a certain number n is divided by 3.

Answer 6

Be brave. Take a guess.

Answer 7

So what n and can u explain it

Answer 8

N divided by 3 = n - 3

Answer 9

I think

Answer 10

n is a variable and represents the number we are looking for. So, I am asking you what n divided by 3 looks like. Say, 5 divided by 3. It looks like 5/3 in symbols.
Note: I cannot write out the solution without asking questions or I will be banished from this site. 0.o

So, what does n divided by 3 look like?

Answer 11

N/3

Answer 12

Is it right ?

Answer 13

Yes, it is right. Good.

N divided by 3 = N - 3 ---> correct except we to get rid of the word divide and replace it by the symbol for division.

So, N/3 = N - 3 We have to solve this for N

Answer 14

Okay

Answer 15

How do we do that?

Answer 16

We need to get the N terms together on one side of the equation so ...

N/3 = N - 3

Subtract N from both sides:

N/3 - N = -3

What is (1/3)N - 1N equal to? Just like 1/3 - 1 but with an N.

Answer 17

I don't know

Answer 18

Okay.
We'll multiply through by 3 and avoid the hassle of fractions.

N/3 - N = -3
3( N/3 - N) = 3(-3)
N - 3N = -9

Your turn: What is N - 3N ? (We're almost finished)

Answer 19

Um I think it is -12?

Answer 20

Or maybe -9

Answer 21

1 - 3 = ? One minus three = ?

Answer 22

Oh 2

Answer 23

I mean -22

Answer 24

-2

Answer 25

Not -22 that was a mistake

Answer 26

3-1 = 2; 1-3 = -2.
-----------------

Answer 27

So n= -2?

Answer 28

N - 3N = -9
-2N = -9
N = -9/(-2)
N = ?

Answer 29

-2 ?

Answer 30

-9 divided by -2 = 9/2. N = 9/2
I'll put together all the parts of the work we did so that you can study it later.

Answer 31

Oh okay thanks you help me so much !

Answer 32

N/3 = N - 3
3( N/3 - N) = 3(-3)
N - 3N = -9
-2N = -9
N = -9/(-2)
N = 9/2 --> Answer

Answer 33

There's all our work in one place. Glad to help.

Answer 34

My big sister didn't even want to help and she's in 8 th grade and I'm in 7th

Answer 35

There will come a time when she will need your help on something. You can remind her of this. c:

Answer 36

I know thanks again

Answer 37

You are welcome.

Answer 38

But I will still help her even though she is so mean I am not gonna be like her at all trust me

Answer 39

@Jessie123456789 The Middle School years are weird sometimes. Just be who you are. And, yes, help those who ask. Great outlook on life, I say.