Question

Solve for b2 in A = h ( b1 + b2 ), if A = 16, h = 4, and b1 = 3.

Answer 1

b2 = 5

Explanation:

16 = 1/2 x 4 (3 + b2)

16 = 2 (3 + b2)

16 = 6 + 2b2

16-6 = 2b2

10 = 2b2

10/2 = 2b2/2 (the 2s canceled out)

5 = b2

Answer 2

Divide 4 by both sides
Then you get 4=3+b2
Then subtracts 3 from four
You get 1=b2