Respuesta :

[tex] \sf 5(4x − 5) + 3x - 1 = 20 \\ \\ \sf\implies 20x - 25 + 3x - 1 = 20 \\ \\ \sf \implies 23x - 26 = 20 \\ \\ \sf \implies 23x = 20 + 26 \\ \\ \sf \implies 23x = 46 \\ \\ \sf \implies x = \frac{46}{23} = 2[/tex]