Question

х+42 + 3х + 40=360°
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Answer 1

Answer:

your answer is.. x = 69.5

Step-by-step explanation:

x + 42 + 3x + 40 = 360°

4x + 82 = 360°

4x = 360° - 82°

4x = 278°

x = 278° / 4

x = 69.5

Hope it helps you!!!!!