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Make r the subject of the formula x/(x + a) = a/r

A. a²/(x + a)

B. (ax + a²)/x

C. a/(x – a)

D. a/(x + a)

QUICK ANSWER…

B

DETAILS…

This is a straight forward math…

Now for the right answer to the above question:

1. Option A is incorrect.
2. Option B is correct.
3. C is not correct.
4. D is not the correct answer.

KEY-POINTS…

You may please note these/this:

• A straight forward math.
• If you love our answers, you can login to comment and say hi to us at the comment section…

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/ culled from 2020 JAMB-UTME mathematics past question 40 /