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to eliminate the fraction, you can multiply by 3 on both sides.

multiply 3 by what?

multiply both sides of the equation by 3

@Best_Mathematician that isn't exatly the answer i was looking for...

so 5 and 12?

my mistake here's the correction
5n + 12 + n = -3
6n = -15
n = -5/2

1.5?

do you have to simplify that?

n=1.5 or 3/2 is incorrect.

but theres no such thing as 1.5 here :(

do you want to solve it on your own, or just want an answer ?

yeahh thats what i was thinking, it cant be right :/

*last line should be -1*3=...?

-3?

thats right side, what about left side of = ?

umm 3*5?

15

sorry i am just terrible at math

3* (1/3)* (5n+12) =5n+12
3* (1/3)* n =n
got this ?

|dw:1362988262501:dw|
sorry i am just terrible at drawing :P

haha no problem! :D

so i subtract 5 from twelve here?

7 ?

|dw:1362988334714:dw|
so, you are left with simple linear equation :
5n+12+n = -3

you can't subtract 5 from 12...there is 'n' attached to 5

combine like terms,
5n+n = 6n

so, 6n +12=-3

oh, so you divide that? i thought you have to subtract because it is opposite of addition :P

-2.5

because division is opposite of multiplication,
...yes, thats correct :)

hmm thanks for the help so far! :) so how do you make that a fraction?

6n = -15
n = -15/6 = -3*5 /(3*2)
3 cancels out.
n = -5/2