Ashley H.

asked • 04/24/18

Simultaneous equations

I have the following simultaneous equations.
 
ac-bd=1
ad+bx=0
 
how do I go about solving these?

Paul M.

tutor
It is unclear what the knowns and unknowns are.  There are 5 letters involved: a, b, c, d, and x and, at least to me, it is not clear what to solve for.  You can, of course, solve for x to get x= -ad/b...but then what.  Please clarify the question.
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04/24/18

Ashley H.

Just realised I have made a mess of this - it is supposed to be
 
ac-bd=1
ad+bc=0
 
x is not involved as a variable, just to clarify. I am trying to find all the values of a,b,c,d that will make these equations true.
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04/25/18

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