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September 2018 1 12 Report

1. Rozwiąż równania

a) 2x+2(3x+1)

b)x/3-x/2=2

c)(x-2)(x+3)=x2 (x kwadrat)

2. Wyznacz c ze wzorów

a) 2(c+1)=3a

b) 2/c=a/4+b/4

c) 1/a-2/2c=2/c

3. Oblicz układy równań

a) x+5y=8

2x-y=5

b) x-y=3

3(x-2)=2x+y


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