9. Two supplementary angles have measures m∠EFG = 112° and mLGFH = (2n-12)°. What is the equation to solve for n?
Since two angles are supplementary, their measures add up to 180 degrees.
The equation to solve for n is:
112° + (2n-12)° = 180°
The equation to solve for n is:
112° + (2n-12)° = 180°