August 2018 2 15 Report
Wpisz brakujące liczby.
a. 12x+8y=4 I÷...
5x+y=18 I ×...

...x + 2y =...
...x-2y=...

b. 4x+8y= 4 I÷...
0,1x-0,3y=0,6 I× ...

x + ... y = ...
-x+ ... y=....
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