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Work out the value of x answer must be in degrees

Work out the value of x answer must be in degrees-example-1
User Wcm
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Answer: x = 20

Explanation:

we see that the sum of 5x and 4x is 180

add 4x and 5x to make the equation 4x+5x=180

from here you simplify to make 9x=180

then divide 180 and 9 to get 20

Therefore x=20

User MSafdel
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