2. Angle Addition Postulate as they are adding both angles
3. 60 + 40 = m <ABC because it's a substitution
4. 100 = m <ABC as it is simplified already
5. Definition of obtuse angle
2 bc you can’t write it as a fraction
Answer:
x = 1/2
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
Step 2: Subtract 2 from both sides.
Step 3: Divide both sides by -4.
Answer: the answer is X= 12