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3(x + 1) - 4x = 5x - 6
3x + 3 - 4x = 5x - 6
- x + 3 = 5x - 6
3 + 6 = 5x + x
9 = 6x
9/6 = x Simplificas.
3/2
Respueta.
3/2
3x + 3 - 4x = 5x - 6
- x + 3 = 5x - 6
- x - 5x = - 6 - 3
- 6x = - 9
x = -9/-6---simplificamos la tercera
x = 3/2
Solución :
x = 3/2