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vichka [17]
3 years ago
13

Pls help I’m sooo stuck and this is veryyyy important

Mathematics
1 answer:
Bond [772]3 years ago
7 0

Answer:

8

Step-by-step explanation:

8x+13 + 12x +7 = 180 ( supplementary angles)

or, 20x + 20 = 180

or, 20x = 160

or, x = 160/20

x= 8

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<span>

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