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8 February, 17:17

Two parallel lines are crossed by a transversal.

Horizontal and parallel lines b and c are cut by transversal a. At the intersection of lines b and a, the bottom left angle is (5 x + 5) degrees. At the intersection of lines c and a, the bottom right angle is 115 degrees.

What is the value of x?

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  1. 8 February, 18:45
    0
    Step-by-step explanation:

    b//c; a is transversal

    5x + 5 + 115 = 180 { 5x+5 and 115 are supplementary angles}

    5x + 120 = 180

    5x = 180 - 120

    5x = 60

    x = 60/5

    x = 12
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