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svet-max [94.6K]
3 years ago
15

A=1/2(B+b)h ; solve for b.

Mathematics
1 answer:
Tju [1.3M]3 years ago
5 0

Answer:

b = \frac{2A -Bh}{h}

Step-by-step explanation:

The given relation is :

A = \frac{1}{2}  (B + b)h

We want to solve for b

We multiply both sides by 2 to get

2A = (B + b)h

Divide through by h

\frac{2A}{h}  =B + b

Subtract B from both sides

\frac{2A}{h}  - B  = b

We now simplify the left hand side to get

\frac{2A -Bh}{h}=b

Or

b = \frac{2A -Bh}{h}

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