Jeden przykład, rozwiązać za pomocą układu równań.
6x - y - 29 = 0
3x + 7y - 23 = 0
6x - y = 0 + 29
3x + 7y = 0 +23
6x - y = 29 /x 7
3x+7y = 23
42x - 7y = 203
+ 3x + 7y = 23
_____________________ ( dodajemy )
45x =226
3x + 7y =23
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6x - y - 29 = 0
3x + 7y - 23 = 0
6x - y = 0 + 29
3x + 7y = 0 +23
6x - y = 29 /x 7
3x+7y = 23
42x - 7y = 203
+ 3x + 7y = 23
_____________________ ( dodajemy )
45x =226
3x + 7y =23