October 2018 2 19 Report

Oblicz wartość liczbową wyrażenia . a) -y+8x-z-2x dla x=-2 , y=6,z=-3 b)-8y-4z+x-y-2z+1 dla x=-0,5 y=-1 z=2 c)9y-(7+x)+(6x-7y) dla x=-2 y=3 d) (6a-8b-0,7)-(6,9+a-5b)+1,8 dla a=0,2 b=0,1


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