4. (3x - 1) = 2?
4. (3x - 1) = 2. (5x + 4).
4. (3x - 1) = 2. (5x + 4).
En resumen
4( 3x - 1 ) = 2 ( 5x + 4 ) 12x - 4 = 10x + 8 - 10x + 12x = 12 2x = 12 x = 6 Comprobamos : 4 ( 18 - 1 ) = 2 ( 30 + 4 ) 4 ( 17 ) = 2 ( 34 ) 68 = 68.
4( 3x - 1 ) = 2 ( 5x + 4 ) 12x - 4 = 10x + 8 - 10x + 12x = 12 2x = 12 x = 6
Comprobamos :
4 ( 18 - 1 ) = 2 ( 30 + 4 ) 4 ( 17 ) = 2 ( 34 ) 68 = 68.
12X - 4 = 10X + 8
12X - 10X = 8 + 4
2X = 12
X = 6.