The equation that can be written to solve for m∠2 is:
x + 77° = 180°
Two angles, ∠1 and ∠2 , in a diagram are supplementary. If m∠1=77°, what equation can you write to solve for m∠2? Let m∠2=x°
O x + 77° = 90°
O x = 77°
O x + 77° = 180°
O x = 90° - 77°
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