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cat face: 5(x-1)+2=2(x+3-1)?

Am nevoie de raspuns cat mai repede.



Răspuns :

5(x-1)+2=2(x+3-1)
5(x-1)+2=2(x+2)
5x-5+2=2x+4
5x-2x=4+5-2
3x=7
x=7/3