linear pairs are supplementary so their sum equals 180°
(3x - 30) + (x + 76) = 180
4x + 46 = 180
4x = 134
x = 33.5
∠1: 3x - 30 = 3(33.5) - 30 = 70.5
∠2: x + 76 = (33.5) + 76 = 109.5
Answer: ∠1 = 70.5°, ∠2 = 109.5°
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