Respuesta :
( 3x × 1) + 2 ( 3 - x) → 0
3 × 3x - 1 + 2 × ( 3 - x ) = 0
7x + 3 = 0
7x = -3
[tex]x = \frac{3}{7} [/tex]
3 × 3x - 1 + 2 × ( 3 - x ) = 0
7x + 3 = 0
7x = -3
[tex]x = \frac{3}{7} [/tex]