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2x - 1 = 3 (2x - 15)
2x - 1 = 6x - 45
2x - 6x = - 45 + 1
- 4x = - 44
x = - 44/-4
x = 11
Respuesta.
x = 11
COMPROBAMOS LA SOLUCIÓN
2x - 1 = 3 (2x - 15)
2 (11) - 1 = 3 (2 * 11 - 15)
22 - 1 = 3 (22 - 15)
21 = 3 (7)
21 = 21
La solución es correcta!