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Rezolvati in R ecuatiile:
a) |2x-3|=5


Răspuns :

|2x-3|=5
2x=5+3=8
x=8:2=4
verificare:|2*4-3|=5
|2x-3|=5
1) 2x-3=5
2x=8
x=4
2) 2x-3=-5
2x=-2
x=-1