Answer:
The correct answer is: x = 11
Step-by-step explanation:
C is the center of circle described around a triangle ΔPQR or circumcenter, and according to this :
PC = RC = QC
PC = RC
3x + 7 = 5x - 15 => 5x - 3x = 7 + 15 => 2x = 22 => x = 22/2 = 11
x = 11
Check:
RC = QC
5x - 15 = 51 - x => 5x + x = 51 + 15 => 6x = 66 => x = 66/6 = 11
x = 11
God with you!!!
