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a. 15 + (-8) - (-25) = 15 - 8 + 25 = 32
b. 14 + (-10) + (-28) = 14 - 10 - 28 = -24
c. -6 - 15 - 20 = -41
2)
a. p(-6) = -54
-6p = -54
p = -54/-6
p = 9
b. -24p = -72
p = -72/-24
p = 4
c. 48/p = 16
(1/48)48/p = 16 (1/48)
p = 16/48 = 1/3
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