Solution:
180° – 153°
= 27°
(x – 4) + (2x + 10) + 27 = 180
x + 2x = 180 + 4 – 10 – 27
3x = 147
x = 49
<(HNN12)>
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Solution:
180° – 153°
= 27°
(x – 4) + (2x + 10) + 27 = 180
x + 2x = 180 + 4 – 10 – 27
3x = 147
x = 49
<(HNN12)>