I need help on this equation:

Question

-5(-3n+4)-12=13

Answer 1

-5(-3n+4)-12=13

15n - 20 - 12 = 13
15n - 32 = 13
15n = 13 + 32
15n = 45
n = ?

Answer 2

-5(-3n+4)-12=13

Add 12 to both sides:

-5(-3n+4)=25

Divide across by 5:

3n - 4 = 5

Add 4 to both sides:

(you fill this in)

Finally, divide across by 3:

(you fill this in too!)