7/b + 9/c = d solve for b

Mathematics

1 answer:

Scilla [17]3 years ago

7 0

Answer:

b = 7c/(dc - 9)

Step-by-step explanation:

Given that:

7/b + 9/c = d

As we have to solve for b

Subtract 9/c from both sides

7/b + 9/c - 9/c = d - 9/c

7/b = d - 9/c

By taking LCM on right side

7/b = (dc-9)/c

By inverting both sides we get:

b/7 = c/ (dc - 9)

Multiplying both sides by 7 we get

b = 7c/(dc - 9)

I hope it will help you!

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Answer:

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Please consider the complete question.

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