Question

What is the solution to the equationhttp://static.k12.com/bank_packages/files/media/mathml_dc5a6d269fe73c1b466c16416a5e9ec78ab65965_1.gif

Answer 1

Just get n alone

Answer 2

oh ok

Answer 3

but how?

Answer 4

\[\frac{ -2n-2 }{ 3 }=12\] First thing we're gonna do is multiply both sides by 3.

Answer 5

6/9=36

Answer 6

The 3's would cancel out. You must have multipled the left side by 3/3, which actually equals 1. It should look like this\[-2n-2=36\] The next step would be to add the 2 on both sides.

Answer 7

sorry was feeding da cat

Answer 8

so n=36?

Answer 9

You tell me. If you plug 36 in for n in the original equation, will you get 12?

Answer 10

no nono no

Answer 11

gah im confused this is why i hate corefocus

Answer 12

\[-2n+(-2+2)=(36+2)\]

Answer 13

i give up

Answer 14

What is -2+2?

Answer 15

What is 36+2?

Answer 16

38

Answer 17

thats a negitive so u sub the 2s

Answer 18

What are you talking about? What is -2+2?

Answer 19

-4

Answer 20

srryi was thinking about timesing it

Answer 21

-2+2 is the same as 2-2. 2 minus 2.

Answer 22

so its not negitive4?
im probably drivingyou crazy sorry

Answer 23

Does 2 minus 2 equal -4?

Answer 24

no its 0

Answer 25

Then -2+2=0 as well

Answer 26

Sooooooooo\[-2n+0=38\] which is the same as\[-2n=38\]Now just divide both sides by -2.

Answer 27

32divided by -2 =-16

Answer 28

Where did this 32 come from? We're working with a 38.

Answer 29

misread srry

Answer 30

its -19

Answer 31

i ow u big time

Answer 32

So \[n=-19\] Now all that's left is to plug in -19 for n in the original equation and see if it matches up.

Answer 33

yep

Answer 34

So that means that -19 is the answer

Answer 35

sorry i took a lot of time from you

Answer 36

and probably drove you crazy

Answer 37

It's fine, I've spent longer.

Answer 38

lol wow

Answer 39

i think that was a hour

Answer 40

We spent 25 minutes.

Answer 41

i only have a week and 3 days left of school to catch up on math witch is at 70 percent

Answer 42

so im gonna have ''fun''

Answer 43

but thank you and have a good summer