Question

Solve: u+2=9u+2=9 u =

Answer 1

The given equation is

`u+2=9u+2=9`

That means

`u+2=9,9u+2=9`

We will solve both equations to find u

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

For the 2nd equation

`\begin{gathered} 9u+2=9 \\ 9u+2-2=9-2 \\ 9u=7 \\ (9u)/(9)=(7)/(9) \\ u=(7)/(9) \end{gathered}`

Since the values of u so not equal, then

The equation has no solution

Then No value for u