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Kisachek [45]
2 years ago
15

Please help and also include an explanation so I know how you got the answer.

Mathematics
2 answers:
geniusboy [140]2 years ago
7 0

Answer:

x=15

Step-by-step explanation:

I gotcha bro

The line C is straight and straight lines are 180°

so 180° = 4x + 8x = 12x ----> 180 = 12x ---> then divide both sides by 12

180/12 = 15   and 12x/12 = x

so 15 = x or x = 15

Nastasia [14]2 years ago
4 0

Answer:

x = 15

Step-by-step explanation:

We know that 4x° + 8x° make a straight angle of 180°.

4x° + 8x° = 180°

12x° = 180°

12x = 180

x = 180/12 = 15

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