Answer:
x = 45
Step-by-step explanation:
180-OSQ = QSR (OSR = 180 because it's a straight angle)
180 - (3x-17)= QSR
All angles in a triangle add up to 180.
SQR + QRS + RSQ = 180
25 + 2x+3 + 180-3x+17 = 180
180-x+45=180
180-180+45=x
45 = x
