Which of the following shows the correct solution steps and solution to 3x+2 =17?
3æ + 2= 17
3æ +2 +2
17 +2
3= 19
3c
19
O A.
19
3a +2=17
3z +2-217 +2
3z=19
19
3
OB.
19
2
3z + 2- 17
3z +2- 2–17
3z = 15
15
3
2
Oc.
3z
3
=-5
3a + 2= 17
3 + 2- 2=17–2
3z = 15
32
3
O D.
15
3

C.

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.