September 2018 3 29 Report
A) -5t+t-6-7t+8t+2+2t= (dla t= -3,2)
b) -7x+6y+3x-2y+x-3y= (dla x= -2/3 i y= 4/7)

(np. 4/7 = cztery siódme)
DAJĘ NAJ!!!
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