November 2018 2 10 Report

zad.1 zredukuj wyrazy podobne.

a) -2a + 5a =

b) 4b - 3 (2 - b) =

c) -15 + 20d +12 - 18d =

d) 4(-2+y) - (4y-5) + 4 =

zad.2 Wykonaj

a(2+x) =

b(b-a) =

a(a+a2)=

b(x-y)=

zad.3rozwiąż równanie

2x+6=12

3y -4 =17

4-2x =10

x+6 = 2x + 3

2x + 4 =4 -3x

3x + 11 = 6x - 1

2(x+1) = 5


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