tolong jawabkan pertanyaan berikut

1 - 3p = -5
-3p = -6
p = 2

-2 - 1/2 r = 0
-1/2 r = 2
r = -4

-3 - (q - 3) = 2
-3 - q + 3 = 2
q = -2

-1 - (1 - 2s) = 8
-1 - 1 + 2s = 8
-2 + 2s = 8
2s = 10
s = 5