September 2018 2 16 Report

1. Opuśc nawiasy i wykonaj działania:
3(x-2y)=
-3(x-2y)=
2(a-b)-3(a+b)=
-(2x+4y-7)=
2. Usuń nawiasy, zredukuj wyrazy i oblicz wartosc wyrażenia dla x= -3 oraz y-3
-5x+(-2y+4x)-(7x-8y)-x+(2-6y)=
3. Wykonaj działania:
3+2*(-7)+4/(-2)=
5-7*(-3)=
-5+7*(-3)=
1-2*(-8)=
(-2)*(-3)+(-3)*(-6)-7=
(-2)*5 ½*0=
(-2)*3*(-4)=
Dam naj.


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