Translate the following sentence into an equation using n to represent the unknown number. then solve the equation for n.

six more than twice a number is 16
a.
6(2 + n) = 16
n = 5
b.
6(2 + n) = 16
n = 2/3
c.
6 + 2n = 16
n = 5
d.
6 + 2n = 16
n = 10

It's pretty straightforward and simple:
Six more means + 6.
Twice a number means 2n.
Is 16 means = 16

Now combine these three definitions and you will receive:
6 + 2n = 16

Now solve this simple equation:
6 + 2n = 16
2n = 16 - 6
2n = 10
n = 10 / 2 = 5

So the correct answer is D.

Figure it out your self