August 2018 1 19 Report
A) 3(5a+3b)-(10a+10b) dla a=-½, b=0,2
b) 2-10(2y-x)+2(-y+4x) dla x=-1, y=-0,1
c)-2(-3x-y)-3x(1+y) dla x=2, y=¼
d)-(6-3y)-(x-2y)-2(x+y) dla x=-1, y=-⅓

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