Answer:
x = 5
Step-by-step explanation:
Diagonals of a parallelogram bisect each other. Based on this knowledge, to show that the quadrilateral is a parallelogram, therefore:
3x - 4 = x + 6
Solve for x
Collect like terms
3x - x = 4 + 6
2x = 10
Divide both sides by 2
x = 5
