Respuesta :

Answer:

x = 6

Step-by-step explanation:

cause you need to add 10 and 3 and then divide both sides by 4

Answer:

10

Step-by-step explanation:

if A is parallel to B then 4x must be equal to 3x + 10

4x = 3x + 10

4x - 3x = 10

x = 10