October 2018 2 309 Report

zad 1 . sprawdz , czy liczba p spełnia podane równania

a) 20-5x=4-13x , p= -2

b) 6x -9=x-(6-2x), p=1

c) 3x-(1+5x)=1/2 +14 , p =-5

d)2/3x-3(1-2/9x)=-2(x-7/2) , p=3

zad2. Rozwiąż równanie

a)2x+4=9

b)-3x+6=7

c) 4x+3=2x-9

d) x-6=5x-2

e)2x+1/3= 1 2/3-2x

f)1/2 -3x=6,5+1/2x


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