3 years ago

What does x equal? angle2 = (20x - 1), and angle3 = (4x + 13)

Mathematics

1 answer:

Maurinko [17]3 years ago

3 0

Answer:

x = 7

Step-by-step explanation:

angles 2 and 3 form a straight angle and are supplementary, that is they sum to 180°, hence

∠2 + ∠3 = 180 ← substitute values

20x - 1 +4x + 13 = 180

24x + 12 = 180 ( subtract 12 from both sides )

24x = 168 ( divide both sides by 24 )

x = 7

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