October 2018 2 19 Report

Wykonaj działania i oblicz wartości liczbowe wyrażeń.
a) (5a+3b) - (10a+10b) dla a= -1/5 , 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= 1/4


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