Question

Solve the equation 9r – 2 = 16 for r.
A. 1
B. 2
C. 4
D. 6

Answer 1

Its B. two

Explanation:

9·2 =18 and 18-2 =16

Answer 2

B. 2

Explanation:

`9r-2=16`

First, add 2 to 2 and 16.

`-2 + 2 = 0` (cancels itself out)

`16 + 2 = 18.`

Now we are left with:

`9r = 18`

Lastly, divide the coefficient from the answer.

`18/9=2`

Therefore, the value of 'r' is 2.

Here is an attachment to make this clearer.