If \(\left[ {\begin{array}{*{20}{c}} {x - y}&z\\ {2x - y}&w \end{array}} \right] = \left[ {\begin{array}{*{20}{c}} { - 1}&4\\ 0&5 \end{array}} \right]\), then find the value of (x + y).
1
1
2
2
3
3
4
-3
If \(\left[ {\begin{array}{*{20}{c}} {x - y}&z\\ {2x - y}&w \end{array}} \right] = \left[ {\begin{array}{*{20}{c}} { - 1}&4\\ 0&5 \end{array}} \right]\), then find the value of (x + y).