Find all possible solutions for x such that â–³ABC is congruent to â–³DEF. One or more of the problems may have no solution.
16. â–³ABC: sides of length 6, 8, and x. â–³DEF: sides of length 6, 9, and x - 1.
17. â–³ABC: sides of length 3, x + 1, and 14. â–³DEF: sides of length 13, x - 9, and 2x - 6
18. â–³ABC: sides of length 17, 17, and 2x + 1. â–³DEF: sides of length 17, 17, and 3x - 9
19. â–³ABC: sides of length 19, 25, and 5x-2 â–³DEF: sides of length 25, 28, and 4 - y
