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