Can someone help me with this please

Step-by-step explanation:

9) In parallelogram, adjacent angles are supplementary

14x - 4 + 86 = 180

           14x  = 180 - 86 + 4

           14x = 98

               x = 98/14

              x = 7

10) In parallelogram, opposite angles are congruent.

6x + 4 = 64

      6x = 64 - 4

     6x = 60

      x = 60/6

    x = 10

11) In parallelogram, opposite sides are congruent.

3x + 4 = 2x + 10

 3x -2x + 4 = 10

           x + 4 = 10

                   x = 10-4

                  x = 6

answer is : muchas/tipicas

have a nice day!

~recklesschicken

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.