i need to find the value of x

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