Answer:
p - a - c = b
Step-by-step explanation:
p = a + b + c
subtract a and b from both sides to isolate c
p - a - c = a - a + b
+ c - c
The reasonable answer should be Dispute.
Answer: C
Step-by-step explanation:
We know that
, and thus by the exterior angle theorem,

Thus, 
(x + 1)·(x + 1 + 11) = (x + 4)·(x + 4 + 1) --> x = 2
Tools like "photomath" are able to help you solving such equations.