The equation that can be written to solve for m2 is:
m1 + m2 = 180°
Substituting m1 = 77° and m2 = x into the equation:
77° + x = 180°
Two angles, 1 and 2, in a diagram are supplementary. If mL1 = 77° , what equation can you write to solve for m2? Let m2=x
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