Matrices - solving two simultaneous equations
Writing simultaneous equations in matrix form Consider the simultaneous equations x+2y = 4 3x−5y = 1 Provided you understand how matrices are multiplied together you will realise that these can be written in matrix form as 1 2 3 −5! x y! = 4 1! Writing A = 1 2 3 −5!, X = x y!, and B = 4 1! we have AX = B This is the matrix form of the ...
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