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Misha Larkins [42]
3 years ago
14

[PHOTO] Please help me need this done by tomorrow thank you! ​

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
7 0

9514 1404 393

Answer:

  x = 28

Step-by-step explanation:

The marked angles are supplementary, so you have ...

  (3x +10) +(3x +2) = 180

  6x +12 = 180 . . . . . . . . . . simplify

  x +2 = 30 . . . . . . . . divide by 6

  x = 28 . . . . . . . subtract 2

__

<em>Additional comment</em>

You might generally solve a 2-step linear equation by doing the subtraction first, then the division by the coefficient of the variable. If all of the numbers are a multiple of that coefficient, I like to do the division as soon as I can. That way, the numbers I'm working with are as small as possible, and once I isolate the variable term, I have the answer.

The obtuse angle (on the left) is 94°; the acute angle is 86°.

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Find the value of x:
slega [8]

Answer:

x = 20

Step-by-step explanation:

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Using ΔAHC , then

∠ACH = 180 - (2x + 100) = 180 - 2x - 100 = 80 - 2x

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3x = 80 - 2x + x

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7 0
4 years ago
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3 years ago
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Dmitry [639]

Answer:

<em>x = -2</em>

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Step-by-step explanation:

<u>Properties of a Parallelogram</u>

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Dividing by 5:

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