Respuesta :
As you can see in the picture, m∠ABD = m∠DBC
So,
[tex]m \angle ABD = m\angle DBC\\\\6x+4=8x-4\\\\4+4=8x-6x\\\\8=2x\\\\ \frac{8}{2}=x\\\\4=x\\\\ \therefore\boxed{x=4} [/tex]
So,
[tex]m \angle ABD = m\angle DBC\\\\6x+4=8x-4\\\\4+4=8x-6x\\\\8=2x\\\\ \frac{8}{2}=x\\\\4=x\\\\ \therefore\boxed{x=4} [/tex]

Answer:
x=4
Step-by-step explanation:
BD is the line that bisects m∠ABC
When a line bisects and angle it form two angles and they are equal.
m∠ABD = m∠DBC
Plug in the measures of angles and solve for x
[tex]6x+4= 8x-4[/tex]
Subtract 6x from both sides
[tex]4=2x-4[/tex]
Add 4 on both sides
[tex]8=2x[/tex]
Divide both sides by 2
x= 4
The value of x=4