Question

PNG Below, first best answer = brainliest.


(Explanation needed if possible)

Answer 1

Answer:

3b + b = 168

Step-by-step explanation:

pls mark brainlyest

Answer 2

Breadth = B

Length = Thrice of breadth = 3b

Perimeter = 168 = 2(l+b)

168=2(l+b)

168=2(3b+b)

168=6b+2b. ( opening brackets )

168=8b ( we can add like expression )

Answer 8b = 168