Answer:
x-4=2
x=2+4
x=6 is the answer
Step-by-step explanation:
a^2+6^2 = 23^2
a^2 = 23^2 - 6^2
a^2 = 529 - 36
a^2 = 493
a = √493
a = 22,20
24d+12d=t
It's D