rozwiaz uklad rownan.
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17b= 51/ :17
b= 3
spr.
5a+8*3=14
5a+24=14
5a= -10 /:5
a= -2
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_______________________________________________
17b= 51/ :17
b= 3
spr.
5a+8*3=14
5a+24=14
5a= -10 /:5
a= -2