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2x - x = 6 + 3
x = 9
Respuesta :
x = 9
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2 (2x - 3) = 6 + x
4x - 6 = 6 + x
4x - x = 6 + 6
3x = 12
x = 12/3
x = 4
Respuesta :
x = 4
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x - 1 + 9 = - 6 + 3x
x - 3x = - 6 - 9 + 1
- 2x = - 14
x = -14/-2
x = 7
Respuesta :
x = 7
-----------------------------------
2x = 6
x = 6/2
x = 3
Respuesta :
x = 3