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19 December, 12:37

Find the value of x.

It's a right angle. One of the angles says (3x) degree other side says (4x-1) degree

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  1. 19 December, 12:40
    0
    x=13

    Step-by-step explanation:

    The sum of the angles of a triangle add to 180 degrees

    3x + 4x-1 + 90 = 180

    Combine like terms

    7x + 89 = 180

    Subtract 89 from each side

    7x + 89-89=180-89

    7x = 91

    Divide each side by 7

    7x/7 = 91/7

    x = 13
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