Respuesta :

Answer:

x = -4

Step-by-step explanation:

[tex]\frac{x}{3}[/tex] - [tex]\frac{5}{4}[/tex] = [tex]\frac{-31}{12}[/tex]

add 5/4 to both side

[tex]\frac{x}{3}[/tex] = [tex]\frac{-31}{12}[/tex] + [tex]\frac{5}{4}[/tex]

use common denominator 12 to add fraction

[tex]\frac{x}{3}[/tex] = [tex]\frac{-31 + 5*3}{12}[/tex]

[tex]\frac{x}{3}[/tex] = [tex]\frac{-31 + 15}{12}[/tex]

[tex]\frac{x}{3}[/tex] = [tex]\frac{-16}{12}[/tex]

multiply by 3 to both sides and solve

x = -4