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

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.