October 2018 1 48 Report

Rozwiąż układy równań:

d) \begin{cases} x+y+z = -2\\x+2y+3z=-1\\x-y-2z = -3\end{cases}</p> <p> e) \left \{ {{3x-2y=-2-\frac{x+y}{2}} \atop {(2x+1)^{2}-(y+2)^{2}=x(4x-3)-y(y+1)-7}} \right.]


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