Question

What is the value of x in the equation 2x + 9 = 21? 26915

Answer 1

Given:

`2x+9=21`

find: the value of x

Step-by-step explanation:

`\begin{gathered} 2x+9=21 \\ 2x=21-9 \\ 2x=12 \\ x=6 \end{gathered}`

Final answer: the required value of x is 6.