Bantuinnn plisssss yang no. 2 aja

a)
7 - n = 2
- n = 2 - 7
- n = - 5
n = 5

b)
n - 4 = -3
n = -3 + 4
n = 1

c)
n - (-9) = 5
n + 9 = 5
n = 5 - 9
n = -4

d)
-8 - n = -1
-n = -1 + 8
-n = 7
n = -7

e)
-n - (-6) = 0
-n + 6 = 0
-n = -6
n = 6