in the adjoining figure ,AOB is astaight line . find the value of x
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Step-by-step explanation:
=(x+3)°+(x+20)°+(x+7)°=180°
=3x°+(3+20+7)°=180°
=3x°+30°=180°
=3x°=180°-30°
=3x°=150°
=x°=150°/3
=x=50°
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