Question

Nine more than six times a number is 39. Solve 6x + 9 = 39. a. 5. b. 8 c. -3 d. 30

Answer 1

We have to write the expression in mathematical terms.

If we have a number x, then "nine more than six times the number" is equivalent to:

`9+6x`

We know that is equal to 39 so we write and solve for x as:

`\begin{gathered} 9+6x=39 \\ 6x=39-9 \\ 6x=30 \\ x=(30)/(6) \\ x=5 \end{gathered}`

Answer: x = 5 [Option a]