Respuesta :

[tex] \frac{1}{2} x + \frac{1}{2} - 2x + 6 = \frac{7}{2} [/tex]
[tex] - 2x + \frac{13}{2} + \frac{x}{2} = \frac{7}{2} [/tex]
subtract 13/2 from both sides

[tex] - 2x + \frac{x}{2} = - 3[/tex]
multiply both sides by 2

[tex] - 4x + x = - 6[/tex]

x=2

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