October 2018 2 29 Report

Jaką liczbą należy zastąpić kwadracik, aby równanie spełniała liczba 1 ?

a) 3x + 2 = x + < kwadracik >

b) 4x + 1 = 6 x - < kwadracik >

c) 2x - 3 = x + < kwadracik >


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