Answer:
x = 3
Step-by-step explanation:
If the two triangles are congruent, then the hypotenuses are equal. Therefore, 13 = 4x + 1, or 4x = 12, or x = 3.
Also, 2x + y = 8x - 2y. Subbing 3 for x, we get:
2(3) + y = 8(3) - 2y, or:
6 + y = 24 - 2y, or:
3y = 18. Then y = 6.
