Tolong dong, besok udah kumpul Tentuk variabel

1. -y + 5 = 3
-y = 3 - 5
y = 2
2. 6 - r = 1
-r = 1 - 6
r = 5
3. p + 8 = -2
p = -2 - 8
p = - 10
4. -4 - 2b = 5
-2b = 5 + 4
-2b = 9
b = - 9/2
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