Answer:
Step-by-step explanation:
All the degrees of a triangle equal 180.
So we can add all of these angles with variables together and equal them to 180 to find x.
3x-2+7x-5+x=180
3x+7x+x=180+2+5
11x=187
x=17
Now, we plug x into each of the angle values to find the final degree measures.
Q 3x-2=3(17)-2=49
P 7x-5=7(17)-2=117
R x=17
