December 2018 2 21 Report
1. Sprawdź, który układ równań spełnia para liczb (6,0) 2 gimnazjum
a) {2x-y=-6
-x+y=2

b) {2x+y=1
x-y=5

c) {4x-y=5
10x-2y=11


d) {2x-3y=12
x+3y=6
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