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igomit [66]
3 years ago
9

Answer the question to get points

Mathematics
1 answer:
geniusboy [140]3 years ago
6 0

Answer:

4. E=4x-15(vertically opposite)

F=E(corresponding angles)

E=4x-15

5.3x+6x+O=180(angles on a straight line)

9x+0=180

9x=180-0

9x/9=180/9

x=20

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