October 2018 1 21 Report

zad 1 str187

rownanie 5 {x - 6} -25 =10 spelnia liczby

a 1

b 13

c 3

d 11

zad2 str187

liczba x = 2,5 jest rozwionzaniem rownania

a x - 7,5 =7,5

b3x + 6 =18

c 5x-6 =8

d6x-3=12

obliczenia prosze


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