September 2018 1 15 Report
Zadanie 7 a b c d str 117 2 gimnazjum a) { x + 2y = - 2 { 2x - y = 1 b) { x + 4y = -2 { 3x - 8y = 10 c) { x - 2y = 3 { -2x + y = 0 d) { 2x + y = 9 { 5x - 4y =3
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