Question

the perimeter of a triangle is given by the formula p = a + b + c. solved for b, this formula becomes b = a p + a + c b p - a - c c p + a - c d p - a + c

Explanation:

Step1: Start with given formula

$P = a + b + c$

Step2: Isolate b

Subtract a and c from both sides: $P - a - c=a + b + c-(a + c)$

Step3: Simplify the right - hand side

$P - a - c=b$

Answer:

B. $P - a - c$