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deff fn [24]
3 years ago
12

Help pleaseeee i don’t know how

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

Answer:

b

Step-by-step explanation:

b=90-a(the other angle)

ex. b=90-51, because it is a right angle.

5) 3x+7+56=90

6)3x+6+48=90

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