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6x + 7 + 4 = 8x + x - 1
6x + 11 = 9x - 1
6x - 9x = - 1 - 11
- 3x = - 12
x = - 12/-3
x = 4
Respuesta
x = 4
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3x + 7 + x = 6 + 8x + 3
3x + x + 7 = 8x + 6 + 3
4x + 7 = 8x + 9
4x - 8x = 9 - 7
- 4x = 2
x = 2/-4
x = - 1/2
Respuesta.
x = - 1/2
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2 - x + 10 = 6x - 3 - 2x
- x + 2 + 10 = 6x - 2x - 3
- x + 12 = 4x - 3
- x - 4x = - 3 - 12
- 5x = - 15
x = - 15/-5
x = 3
Respuesta
x = 3