Answer:
x = 6, x = 3
Explanation:
Since the triangles are congruent then corresponding sides are congruent, that is
BC = EF , so
15x - 6 = 10x + 24 ( subtract 10x from both sides )
5x - 6 = 24 ( add 6 to both sides )
5x = 30 ( divide both sides by 5 )
x = 6
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Since the figures are congruent then corresponding sides are congruent, that is
ED = LK , so
20x + 9 = 11x + 36 ( subtract 11x from both sides )
9x + 9 = 36 ( subtract 9 from both sides )
9x = 27 ( divide both sides by 9 )
x = 3