Question

find what c means - 27=3c-3(6-2c)

Answer 1

ah you want to find the value of c? first, lets simplify this equation together! That is what you are asking, isn't it...

Answer 2

Yes Thanks!!!! Finally I get it Okay she said we need to simplify then use inverse then prove it and then do our properties

Answer 3

right, you simplify by distributing, add the like terms together, then you solve for c just like in a regular equation! :)

Answer 4

okay so I don't think there is anything we can simplify

Answer 5

Ok I guess that's correct thank you...... :)

Answer 6

- 27=3c-3(6-2c)
First, distribute -3 to the parenthesis
so
-27 = 3c-18+6c
add like terms
-27 = 9c - 18
To get c, transpose -18 to the other side
-27 + 18 = 9c
-9 = 9c
divide both sides by 9
so
c=-1

Answer 7

wait that's not right but thank you I messed up and put -27 and it is just 27

Answer 8

thanks for explaining @petiteme , but I was hoping to get @haburke to figure it out by him/her self lol well that's okay, glad you get it now :)

Answer 9

No it wasn't right Jaimerox4ev3r I messed up and put - 27

Answer 10

Sorry :) @haburke if its not -27, just follow the steps :)

Answer 11

ok thanks to you both

Answer 12

and plug the variable back into the equation, that should help you a lot! :) This will also help prove whether you are correct or not

Answer 13

okay now I have another one but I got the answer and it works in the calculator but not when I try to prove it

Answer 14

3+4(z+5)=3 I got z= 2

Answer 15

distribute first 4 to the (z + 5)

Answer 16

substitute z by 2 :)

Answer 17

lets double check by plugging in the values.
3+4(2+5)=3
3+8+20 does not equal 3....so that means taht 2 is not a correct answer. Let me walk you through a process similar to the one @petiteme showed earlier

Answer 18

So first, use distribution
3+4(z+5)=3
3+4z+20=3
Then add like terms
23+4z=3
Subtact 23 from both sides
23+4z=3
-23 -23
---------
4z=-20
divide by 4
4z=-20
/4 /4
z=-5
^
and that right there should be your answer :)

Answer 19

ok see i did this :
3=4(z+15)=3
3+4z+20=31
4z+23=31
4z+23-23=31-23
4z=8
4z/4=8/4
z=2

Answer 20

how did you get 31 is my question? also, why do you have 15 in your top line inside the parentheses, i thought it was 5!. All of what you did seems correct, just not sure how you got 31.

Answer 21

Okay the original problem was 3+4(z+5)=40

Answer 22

crud no 31

Answer 23

the original problem is 3+4(z+5)=31

Answer 24

wait so you wrote the problem wrong? O.o if so, rewrite it correctly please lol and then I can try to double check and solve it again :P if need be

Answer 25

Okay I just cant type well today :
3+4(z+15)=31
3+4z+20=31
4Z+23=31
-23 -23
4Z= 8
4Z/4=8/4
Z=2

Answer 26

??

Answer 27

is it really 15 or 5?

Answer 28

its 15 i just messed up sorry

Answer 29

its okay :) if its 15, check your calculations. while distributing 4, 4(15) is not 20 :)