kimmyzamora235609 kimmyzamora235609
  • 15-01-2021
  • Mathematics
contestada

Solve 3[-x + (2 x + 1)] = x - 1.
x = 2

Respuesta :

Dead3ill
Dead3ill Dead3ill
  • 15-01-2021

Answer:

x = -2

Step-by-step explanation:

[tex]3[- x + (2x + 1)] = x - 1[/tex]

[tex] = > 3[ - x + 2x + 1 ] = x - 1[/tex]

[tex] = > 3[x + 1] = x - 1[/tex]

[tex] = > 3x + 3 = x - 1[/tex]

[tex] = > 3x - x = - 1 - 3[/tex]

[tex] = > 2x = - 4[/tex]

[tex] = > x = \frac{ - 4}{2} = - 2[/tex]

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