8 times of a number plus 2 / 3 of 30 is 16. What's the number?

8 times of a number plus 2 / 3 of 30 is 16. What's the number?

8*X+30*2/3=16
8*X=16-20=-4
X=-4/8=-0.5
It is necessary to distinguish clearly:
Eight times a number plus two-thirds of 30 is 16
8 times of a number plus 2 / 3 of the sum of 30 get 16 sentences