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Question Number 46088 by Cheyboy last updated on 21/Oct/18

Answered by $@ty@m last updated on 21/Oct/18

$$LetSolutionset=\left[\begin{array}{cc}a& b\\ c& d\end{array}\right]$$$$a+b=8...\left(1\right)$$$$b+d=8...\left(2\right)$$$$\Rightarrow a=d...\left(3\right)$$$$c-d=6...\left(4\right)$$$$a+c=13...\left(5\right)$$$$\left(3\right)\mathrm{\&}\left(5\right)\Rightarrow c+d=13...\left(6\right)$$$$\left(4\right)\mathrm{\&}\left(6\right)\Rightarrow c=9.5$$$$\Rightarrow d=3.5$$$$\Rightarrow a=3.5$$$$\Rightarrow b=4.5$$$$\therefore Solutionset\left[\begin{array}{cc}a& b\\ c& d\end{array}\right]=\left[\begin{array}{cc}3.5& 4.5\\ 9.5& 3.5\end{array}\right]$$

Commented by Cheyboy last updated on 21/Oct/18

$$\mathrm{Thank}\mathrm{you}\mathrm{sir}$$$$$$$$$$

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