1.

\left. \begin{array} { c } { 024.11 x + 15 y + 23 = 0 } \\ { 7 x - 2 y - 20 = 0 } \end{array} \right.

Answer»

22x+30y+46+105x-30y-300=0127x=254so x=222+15y+23=015y=-45so y=-3



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