Respuesta :

Answer:

[tex]3 {x}^{2} + 10x + 2x = 5x + 3x \\ 3 {x}^{2} + 12x = 8x \\ 3 {x}^{2} = 8x - 12x \\ 3 {x}^{2} = - 4x \\ 3x = - 4 \\ x = \frac{ - 4}{3} \\ thank \: you[/tex]