October 2018 1 13 Report

1.Doprowadź do najprostszej postaci:

5(6a-4b+c)-4(3a+b-2c)=

7x(x+2y-3z)-6x(2x-3y-5z)=

-3(-2a-4b-c)-6(a-2b-6c)=

(5x-10y-25):5=

4x-2y-1 + 1,5x+3x-6 =

4 3


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