Respuesta :

Answer:

39⁰

Step-by-step explanation:

WE KNOW THAT,

SUM OF ALL ANGLES OF A TRIANGLE IS EQUAL TO 180⁰

P+Q+R=180⁰

2x⁰-9⁰+x⁰+33⁰+x⁰=180⁰

4x⁰+24⁰=180⁰

4x=180⁰-24⁰=156⁰

x=39⁰