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How do you solve this type of problem?

How do you solve this type of problem?-example-1

1 Answer

4 votes

Answer:

(3x+4)+55°+85°=180°

(3x+4)+140°=180°

(3x+4)=180°-140°

(3x+4)=40°

3x+4=40

3x=40-4

3x=36

x=12

(3x+4)

(3×12)+4

=40°

User Matthew Taylor
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