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The interior angles formed by the sides of a quadrilateral have measures that sum to 360°. What is the value of x? Enter your answer in the box. x =

The interior angles formed by the sides of a quadrilateral have measures that sum to 360 What is the value of x Enter your answer in the box x class=

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FimaH
there are 2 (2x+3)s and 2x
you can write this as 2(2x+3)+2x
which can be written as...
4x+6+2x
which is...
6x+6 which is equal to 360
6x=354
354/6=59.
x=59
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