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17 July, 12:19

The measure of ∠A is 55° more than three times the measure of ∠B. The sum of their measures is 155°. Find m ∠A and m ∠B.

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  1. 17 July, 12:30
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    A = 3B + 55

    A + B = 155

    3B + 55 + B = 155

    4B = 155 - 55

    4B = 100

    B = 100/4

    B = 25 <===

    A = 3B + 55

    A = 3 (25) + 55

    A = 75 + 55

    A = 130 <==
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