Question

I just don't understand any of this because I'm dyslexic.

Answer 1

HI = 9

Explanation:

HJ = HI + IJ

2x + 10 = x + 9 + 1

2x - x = 10 - 10

∴ x = 0

∴ HI = x + 9

= 0 + 9

= 9