Answer:
Step-by-step explanation:

Answer:
yes.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
y+2=y+2
Step 2: Subtract y from both sides.
y+2−y=y+2−y
2=2
Step 3: Subtract 2 from both sides.
2−2=2−2
0=0
Answer:
All real numbers are solutions.
Step-by-step explanation:
60° + 80° + y = 180° ( being straight angle )
140° + y = 180°
y = 180° - 140°
y = 40°