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4 years ago

Help pls! Type in your response as a whole number with no extra symbols , variables, or spac

Mathematics

1 answer:

SVEN [57.7K]4 years ago

3 0

Answer:

Step-by-step explanation:

Because the two labelled angles make up a line, we know their sum is 180.

So, add them and set them equal to 180:

2x + (x - 9) = 180

Combine like terms:

3x - 9 = 180

3x = 189

x = 63

Thus, the answer is 63.

<em>~ an aesthetics lover</em>

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