Two supplementary angles have measures m∠QRS=33° and m∠RST=(2x+21)°. What is the equation to solve for x?
Since the angles are supplementary, their measures sum up to 180°.
Therefore, the equation would be:
33° + (2x + 21)° = 180°
Therefore, the equation would be:
33° + (2x + 21)° = 180°