September 2018 2 13 Report

Rozwiąż równania ... treść w załaczniku.

Proszę o obliczenia pokazanym sposobem.

8.

c)7 - (3x +4) = (x +1) - (2x +4) =

7- 3x - 4 = x + 1 - 2x -4 =

-3x - x + 2x = -7 + 4 + 1- 4 =

-2x = (-6) : (-2)

x = 3

DAJE NAJ!


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