December 2018 1 8 Report
Rozwiąż układy równań:
a)  \left \{ {{2x-y-6=0} \atop {(3x-1)(1+3x)+y=(1-3x)^{2} }} \right.
b)  \left \{ {{ \frac{1}{2}x- \frac{1}{12}y=0,25 } \atop {(x-1)^2=(2-x)^2 }} \right.
c)  \left \{ {{ \frac{1}{3}x+ \frac{1}{6}y-7=0 } \atop {( \frac{1}{2}y-6)^2= \frac{1}{4}(y+4)^2 }} \right.

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