September 2018 1 10 Report

Rozwiąż układ równiań:

a) \left \{ {{6x - 2y = 9} \atop {3x + y - 4,5 = 0}} \right

b)\left \{ {{0,1x - 0,2y = 0,7} \atop {-2x+ 4y = -14}} \right

c)\left \{ {{4a - 7b = - 19} \atop {3a+ 2b = 22}} \right

d) \left \{ {{\frac{2}{3}x + y - 7 = 0} \atop {1\frac{1}{3}x + 4y = \frac{7}{3}}} \right


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