November 2018 1 9 Report

Wykonaj działania i oblicz wartości liczbowe wyrażeń:

a) 3(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

d) -(6 - 3y) - (x - 2y) - 2(x+y) dla x= - 1, y= - 1/3


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