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OpenStudy (anonymous):
solve by inverse matrix method : 2x + 3y = 12...........(i) 3x=7 + y.................(ii)
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OpenStudy (anonymous):
write the second eq in form 3x-y=-7. Then draw a 2*2 matrix, using the coeff. Take to the RHS (the 2*2 matrix) and compute. [Matrix]^(-1) * Matrix [of the value in RHS of eqns]
OpenStudy (anonymous):
goood solve it then
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