THE ANSWER IS:
Q=98
P=25
R=57
STEP BY STEP EXPLANATION AND DOUBLE CHECKING:
1. Because you’re trying to find the variable for INTERNAL angles, all the angles will add up to 180. So, you put all the angles = 180
5x+3+3x+x+6=180
2. Add up all like terms
5x+3+3x+x+6 —> 9x+9=180
3. Subtract 9 from both sides
9x+9=180 —> 9x=171
4. Divide
9x=171 —> x=19.
TO DOUBLE CHECK THE ANSWER:
Plug 19 into all the variables.
ANGLE Q —> 5x+3 —> 5*19+3 —> 98
ANGLE P —> x+6 —> 19+6 —>25
ANGLE R —>3x —> 3*19 —> 57
Hope i helped :)
