Question

(z-9)+2=9solve the equation

Answer 1

the equation is:

`(z-9)+2=9`

Now we can substrac -2 in bout sides of the equation:

`\begin{gathered} z-9+2-2=9-2 \\ z-9=7 \end{gathered}`

now we can add 9 so:

`\begin{gathered} z-9+9=7+9 \\ z=16 \end{gathered}`