help me please don't know this

n/5 = -1/5
5n = -5
n = -1
n - 13 = -12
n = -12 + 13
n = 1
n + 15 = -10
n = -10 - 15
n = -25
-5n = 1
n = -1/5
Answer:
1.multiply both sides by 5 n=−1/5x5 cancel out the 5 so n=-1
2.add both sides by 13 n=-12+13 simplify -12+13 to 1 n=1
Step-by-step explanation: