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x=1/3
1/3+2=3-1/3+4
- > x+2=3-2x+4/ +2x
3x+2=7/ -2
3x=5
x=5/3
Para saber si el valor es correcto reemplazamos y vemos si da la igualdad:
() +2= 3-2()+4
=7-
=
=