Respuesta :

Answer:

x = 25

Explanation:

Both angles are supplementary. It means that the sum of both angles is equal to 180°, so we can write the following equation:

2x + 10 + 4x + 20 = 180

Now, we need to solve for x, so adding like terms, we get:

6x + 30 = 180

Subtracting 30 from both sides:

6x + 30 - 30 = 180 - 30

6x = 150

Dividing by 6, we get:

6x/6 = 150/6

x = 25

Therefore, the answer is x = 25

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