#### Answer

$58^{\circ}$

#### Work Step by Step

1. Vertical angles are equal to each other, then we can construct following equation.
9x+4=12x-14
12x-9x=4+14
3x=18
x=6
2. Then plug vale of x to find the angle
9(6)+4=58

Published by
Pearson

ISBN 10:
0321671775

ISBN 13:
978-0-32167-177-6

$58^{\circ}$

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