Question

pls give me the answer​

Answer 1

Answer:

they are linear pair of angles so

$(3x - 7) + 55 + (x + 20) = 180 \\ 4x + 68 = 180 \\ 4x = 112 \\ x = \frac{112}{4} = 28 \\ 3x - 7 = 3 \times 28 - 7 = 84 - 7 = 77 \\ x + 20 = 28 + 20 = 48$

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