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May 1st, 2009, 06:42 PM   #1
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Changing the subject of a formula

Ok, this most likely will be a silly question but im having trouble trying to make X the subject of the formula XA +BA = B

im hoping someone is able to enlighten me

Thanks
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May 6th, 2009, 06:23 PM   #2
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Re: Changing the subject of a formula

Do you mean solve for X? I assume these are matrices: If A is invertible, factor A out on the right, multiply by the inverse of A, then subtract B.
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