Question

IM confused about this question can someone explain it to me step by step please!!! -2(-c-12)=-2c-12

Answer 1

First you need to distribute the -2. And don't for get that and neg x neg = pos.

Answer 2

The first thing you need to do is use the distributive property on the left side.
-2(-c - 12) = -2c - 12
-2(-c + -12) = -2c - 12
(-2)(-c) + (-2)(-12) = -2c - 12

Answer 3

And then what im still confused

Answer 4

What does that give you on the left side? and what does the equation look like now? show me please.

Answer 5

who?

Answer 6

Go ahead and type what you have, so far, in here.. then I can help you.

Answer 7

Well the last thing i have now is (-2)(-c)+(-2)(-12)=-2c-12 which what mathstudent said but i had it long ago

Answer 8

OK, so go ahead and simplify the left side.

Answer 9

One sec imma do it over again cause im confused now

Answer 10

and sorri the problem goes like -2(-c-12)=-2c-12

Answer 11

Right, now distribute the -2 on the left side and then show me what the equation looks like at that point... and then I'll help you through the rest.

Answer 12

kk

Answer 13

Omg ok im so confused over again can you show me what you mean because my head is spinning trying to figure out what you mean by -2 on the left side

Answer 14

You multiply -2 x -c and then -2 x -12 .. that is how you do it. show me what you get please.

Answer 15

Is this how you set it up -2 x -c-12=-2c-12 x -2?

Answer 16

Multiply out the left side:
(-2)(-c) + (-2)(-12) = -2c - 12
2c + 24 = -2c - 12

Answer 17

The left side of mathstudent's reply is what you would get.

Answer 18

Once you've multiplied out the left side, you need to bring all terms with c to the left side, and all numbers to the right side.

Answer 19

OK ill try it

Answer 20

2c + 24 = -2c - 12
In order to move -2c from the right side to the left side, you need to add 2c to both sides of the equation
2c + 24 = -2c - 12
+2c = +2c
-------------------- (add both lines)
4c + 24 = - 12

Answer 21

The next step is to move 24 to the right side. In order to do that, you need to subtract 24 from both sides.
4c + 24 = - 12
- 24 - 24
-------------- (add bnoth lines)
4c = -36

Answer 22

Hmmm

Answer 23

The last step is to divide both sides by 4 to get rid of the 4 that is multiplying c:
4c/4 = -36/4
c = -9
Final answer: c = -9

Answer 24

Thanks that helped alot!!!

Answer 25

You're welcome.