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If[[x,y],[x,x/2+t]]+[[y,x+t],[x+2,x/2]]=...

If`[[x,y],[x,x/2+t]]+[[y,x+t],[x+2,x/2]]=[[1,4],[2,3]]`
find x,y,z and t.

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MODERN PUBLICATION-TEST PAPER 1-PROBLEM
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