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25 August, 18:07

A = 8x - 10°

B = 3x + 90°

Solve for x and then find the measure of B:

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Answers (1)
  1. 25 August, 18:17
    0
    8x-10=3x+90

    8x-3x = 90+10

    5x=100 divide by 5x on each side

    X=20

    B=3 (20) + 90 = 150

    Answers: X=20

    Angel B is 150°
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