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06-11-2018
Mathematics

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The sum of two complementary angels is always 90 degrees. The value of x in the figure below is _______.

2x , x-30*

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06-11-2018

Answer:

40

Step-by-step explanation:

2x+x-30=90

add 30 to both sides

2x+x=120

combine like terms

3x=120

divide both sides by 3

x=40

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