Question

Find the value of x in the following figures
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Answer 1

3x+11° = 5x-9°

3x-5x = -9°-11°

-2x = -20

x = 20/2

x = 10

3x+10°+175°+3x+5x+4x+115° = 720°

15x+300° = 720°

15x = 720°-300°

15x. = 420°

x = 420°/15

x=28°