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Triss [41]
3 years ago
12

Need help, someone explain

Mathematics
1 answer:
JulsSmile [24]3 years ago
3 0

Answer: X = 19

Step-by-step explanation: it is a three equation system, the problem is you don't have the third equation, so we have to infer it, and it's: PRQ + QRS = 180.

then we do as follows:

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