Question

Solve the equation. Check your solution.

$y+9=0$

Short answer

Solution of given equation is$y=-9$

Step-by-step solution

Step 1.  Solving for value of y

$y+9=0$

Subtracting $9$on both sides, we get

$\begin{array}{l}y+9-9=0-9\\ y=0-9\\ y=-9\end{array}$

$y=-9$

Step 2. Verification of our solution

For checking our answer, substitute $y=-9$ in given equation $y+9=0$.

On substituting, we get

$\begin{array}{l}y+9=0\\ -9+9=0\\ 0=0\end{array}$

Step 3.  Conclusion

Here as both sides above expression are equal, our answer is true.