Answer:
{x,y} = {1,2} I believe <3
Step-by-step explanation:
Those are supplementary angles, therefore:

Assignment: 
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Answer: 
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Explanation: 
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[ Step One ] Divide Both Sides By 5

[ Step Two ] Simplify

[ Step Three ] Subtract 4 From Both Sides

[ Step Four ] Simplify

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Answer:
if you where to flip CBE on top of ABD they will fit perfect
Step-by-step explanation:
its not rlly that hard if you can see point AD = CE so is AB=CB both triangles end at B they both have a right angle at the end of ABD and CBE and both have an acute angle at the end at point B from AD and CE
Answer:
its 17degree as it is supplement to 163