Explanation:
or, x°+(2x+17)°(2x+5)°=180°
or, x°+2x°+17°+2x°+5°=180°
or, 5x°+22°=180°
or, 5x°=180°-22°
or, 5x°=158°
or, x°=158/5
or, x°=31.6
now,
(2x+17)°=2*31.6+17=80.2°
(2x+5)°=2*31.6+5=68.2°
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