Question

$\huge \bold{solve}$
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Answer 1

Answer:

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Answer 2

Answer:

x = 140°

step-by-step-explaination:

30 + ( 180° - 70° ) + x = 540°

30 + 120° + 100° + 3x = 540°

260 + 2x = 540°

2x = 540 - 260

2x = 280°

x = 280/2

x = 140°