Respuesta :

Answer:

x =21

Step-by-step explanation:

PQR is 90°

so x +2x +27 = 90

3x + 27 = 90

3x = 90-27

3x = 63

x = 63 /3

21

mark branliest i solved full question

the answer is b.
90=27+3x. 90-27=3x. 63=3x. 63/3=3x/3. 21=x