SOLUTION: ION: the four angles of a heptagon are equal and each of the other three are 20degree greater than each of the first four find the angle

SOLUTION: ION: the four angles of a heptagon are equal and each of the other three are 20degree greater than each of the first four find the angle

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Question 1148145: ION: the four angles of a heptagon are equal and each of the other three are 20degree greater than each of the first four find the angle
Answer by ikleyn(52803) (Show Source): You can put this solution on YOUR website!
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4x + 3*(x+20) = (7-2)*180.

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