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adelina 88 [10]
3 years ago
9

HELPPP PLEASE!!!!!!!!!

Mathematics
1 answer:
lbvjy [14]3 years ago
8 0
<h3>Answer:  x = 40</h3>

Work Shown:

Focus on the angles at the bottom right

Those two angles add to 180 since they form a straight line. We consider them supplementary angles.

x+(4x-20) = 180

5x-20 = 180

5x = 180+20

5x = 200

x = 200/5

x = 40

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