Answer:
x = 11
Explanation:
< FEB = 180 - 4x A straight line has 180 degrees.
The angle 147 is a remote exterior angle.
Therefore 180 - 4x + x = 147 Subtract 180 from both sides
-4x + x = 147 - 180
-3x = - 33 Divide by -3
x = - 33/-3
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