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Mathematics, 13.03.2021 04:20 kayla942783

Let x and y be two supplementary angles, where the measure of x is three times the measure of y. Which system of equations below could be used to find the measure of the two angles? A. x + y = 180
x = y + 3

B. x + y = 180
y = 3x

C. x + y = 180
y = x + 3

D. x + y = 180
x = 3y

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