Question

calculate the value of x​

Answer 1

Answer:

x= 15 degrees

Step-by-step explanation:

8x + 3x + x = 12x

The measure of a straight line is 180 degrees.

So, 12x = 180 degrees

x=180/12 = 15

So, x = 15 degrees

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Answer 2

${\huge {\pink {\overline {\underline {\boxed {\mathcal {Answer}}}}}}}$,

$\pink\longrightarrow$ 8x + 3x + x=180

$\pink\longrightarrow$ 12x = 180

$\pink\longrightarrow$ x= 180/12

$\pink\longrightarrow$ x=15

value of 8x ,3x and x are 120°,45° and 15°