Respuesta :

Answer:

x = 13

Step-by-step explanation:

a right angle is 90 degrees and so you have to make both sides of that line add up to 90. so youre gonna want to add both sets of the numbers and equal it to 90 (90 = 53 + 24 + x) you can subtract 53 and 24 from both sides and youll be left with 13.