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Artist 52 [7]
3 years ago
7

Solve for x a) 10 b) 40 c) 28 d) 58

Mathematics
1 answer:
Fantom [35]3 years ago
6 0

Answer:

a

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180

x + 18 + 4x + 112 = 180 , collect like terms

5x + 130 = 180 ( subtract 130 from both sides )

5x = 50 ( divide both sides by 5 )

x = 10

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