Respuesta :

Answer:

4/5

Step-by-step explanation:

13x + 8 = 23x

Subtract 13x From both sides and get:

8 = 10x

Divide both sides by 10 and you get:

8/10 = x

Simplify the fraction:

4/5 = x

[tex]\frac{1}{3} x+8=\frac{2}{3} x+12\\\frac{1}{3} x=-4\\x=-12[/tex]

Answer: B

P.S. Hello from Russia :^)