September 2018 2 18 Report

5 przykładów :dodawanie i odejmowanie sum algebraicznych ;/

Przykłady :

a) (-2a+b)+(3a-5b)+(4a+b)=

b) (4a-5b)+(-3a+2b-1)+(2a-4b+5)=

c) -6x-(-4x+2y+6)+

d) (2x+9y+1)-(5x-4y-5)=

e) -(3a+1)-(-2a+1)-(4a+b)=


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