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cum se rezolva ecuatia 1/2=|9-2x|/3​

Răspuns :

|9-2x|=9-2x
1/2=9-2x/3=>produsul miezilor=produsul extremilor=>1•3=2•9-2x=>3=18-2x=>
=>2x=18:3=>2x=6=>x=3