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|2x-3|=|4x+5|








(20 de caractere......)


Răspuns :

Ai doua rezolvari

2x-3 = 4x+5 => 2x-4x = 5+3 => -2x = 8=> x = -4

2x-3 = -4x-5 => 2x+4x = -5+3 => 6x = -2=> x = -2/6 = -1/3