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13 July, 12:42

Angles a = 3x + 5 b = 5x - 18. C = 7x - 2

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  1. 13 July, 14:22
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    x = 13.

    So the 3 angles are a = 44, b = 47 and c = 89 degrees.

    Step-by-step explanation:

    If these are the angles are the 3 angles of a triangle they sum to 180 degrees, so:

    3x + 5 + 5x - 18 + 7x - 2 = 180

    15x - 15 = 180

    15x = 195

    x = 195/15

    x = 13.
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