The Student Room Group

Algebra question

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(edited 8 years ago)
Reply 1
Original post by maths10101
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Hello, I am having difficulty with answering this question, it'd be very much appreciated if some help could be giving to the solution and an explanation as to how it is done!☺️X


What have you tried? Try pre-multiplying by b^(-1), etc... post-multiply by the appropriate element till you isolate x using the fact that
elemeent * inverse = identity and anything * identity = anything.
Reply 2
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Original post by Zacken
What have you tried? Try pre-multiplying by b^(-1), etc... post-multiply by the appropriate element till you isolate x using the fact that
elemeent * inverse = identity and anything * identity = anything.


Did you mean by doing this...
Reply 3
Original post by maths10101
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Did you mean by doing this...


Looks good to me!

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