2 years ago

NEED HELP ASAP, PLEASE

Mathematics

2 answers:

kozerog [31]2 years ago

6 0

Answer:

Step-by-step explanation:

8x and 7x + 3 are vertically opposite angles.

Vertically opposite angles are equal,

8x = 7x + 3

8x - 7x = 3

x = 3

ch4aika [34]2 years ago

5 0

Answer:

DCE=156°

Step-by-step explanation:

8x=7x+3

8x-7x=3

x=3

BCD+DCE=180

8x+DCE=180

24+DCE=180

DCE=180-24

DCE=156°

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