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Novosadov [1.4K]
3 years ago
13

Please explain how to solve & the answer!

Mathematics
1 answer:
Levart [38]3 years ago
6 0

Answer:

B

Step-by-step explanation:

given

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

multiply both sides by 2 to eliminate the fraction

2A = (b_{1} + b_{2})h

divide both sides by the multiplier h

\frac{2A}{h} = b_{1} + b_{2}

Subtract b_{2} from both sides

\frac{2A}{h} - b_{2} = b_{1}, that is

b_{1} = \frac{2A}{h} - b_{2}

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