- #1

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im hoping someone is able to enlighten me

Thanks

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- Thread starter chuckienz
- Start date

- #1

- 2

- 0

im hoping someone is able to enlighten me

Thanks

- #2

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make X the subject

What do you mean by "subject"?

- #3

HallsofIvy

Science Advisor

Homework Helper

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chuckienz, you solve an equation, or make x the subject of the equation, by "reversing" what has been done to x. Here, the equation is XA+ BA= B.

If I were given a value for A and asked to evaluate the left side, I would do two things: first multiply by A, second add BA. Here, you want to do the opposite. The opposite of "multiply by A" is "divide by A" or, same thing, "mutiply by A

So:

1) Subtract BA from both sides of the equation.

2) Multiply both sides of the equation by A

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