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Serga [27]
2 years ago
9

Answer this and explain please

Mathematics
1 answer:
Nitella [24]2 years ago
4 0

Answer:

x = 3

Step-by-step explanation:

The sum of two interior angles in a triangle is equal to an exterior angle that's supplementary to the third interior angle:

15x + 5 + 22x + 4 = 120 add like terms

37x + 9 = 120 subtract 9 from both sides

37x = 111 divide both side by 37

x = 3 and to find the angles replace x with 3 in given expressions

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3 years ago
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Answer:

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Step-by-step explanation:

Step 1: Solve

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2 years ago
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