Answer:
3x-1=16*2
3x=32+1
3x=33/:3
x=11
Step-by-step explanation:
Answer:
7/9
Step-by-step explanation:
Answer:
9 and 1/2
Step-by-step explanation:
Answer:
Finding b:
57+b = 180 (linear pair)
b = 123
Finding c:
c = 123 (vertical angles are always congruent