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Verified answer
P + 2q-----------
q + r
= (-18) + 2(-7)
-------------------
(-7) + 11
= (-18) - 14
---------------
4
= - 32 / 4
= (-8)
= -18 - 14
= - 32
q + r = -7 + 11
= 4
(p + 2q) / (q + r)
= -32 / 4
= -8