September 2018 1 19 Report

Rozwiąż równania:

|x-5|-|x+5|=3

|2x+6|-|2x+4|= -3

||2-x|-3|=3

Rozwiąż nierówności:

|x-3|+|x+3|<7

-|2x+6|+|2x+4|>4

||-x+3|-3|≥3


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