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alexgriva [62]
3 years ago
9

Find the value of x

Mathematics
2 answers:
dem82 [27]3 years ago
7 0

Answer:

x = 147

Step-by-step explanation:

The three angles add to a full circle, so the sum of their measures is 360 degrees.

42 + (-124 + x) + 2x + 1 = 360

3x - 81 = 360

3x = 441

x = 147

Veronika [31]3 years ago
4 0

Answer:

x =147

Step-by-step explanation:

The sum of the angles is = 360 -(2x+1) ( since it will make a full circle)

42+(-124+x) =360-(2x+1)

Combine like terms

x-82 =359-2x

Add 2x to each side

x-82+2x = 359

3x -82 = 359

Add 82 to each side

3x-82+82 = 359+82

3x = 441

Divide by 3

3x/3=441/3

x =441/3  or 147

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