October 2018 1 22 Report

wykonaj dzialania i oblicz wartosc liczbowa wyrazenia.

a) 3(5a+3b) -(10a+10b) dla a = -1/5 (minus jedna piata) dla b = 0,2
b)2-10(2y-x) +2(-y+4x) dla x +1 dla y = -0,1
c) -2 (-3x-y)-3x(1+y) dla x = 2 dla y = 1/4 (jedna czwarta)
d) -(6-3y) - (x - 2y) - 2(x+y) dla x = -1 dla y= -1/3 (minus jedna trzecia)
piszczie obliczenia !


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