Question

PLEASE NO LINKS,

Answer 1

Answer:

21.) x = 0

23.) x = 0

Step-by-step explanation:

21.)

We know that Sides AD and BC are parallel to each other, so they are congruent as well, thus we can say:

x + 12 = 12

=> Now just subtract 12 on each side of "="

x = 0

23.)

We know that sides SV and TU are parallel which makes them congruent, hence;

12 + 2x = x + 12

=> First subtract x from each side,

12 + x = 12

=> Lastly subtract 12 on each side:

x = 0

Hope this helps!