Question

Write the sentence as an algebraic equation and find its solution.

The sum of a number and $5$ is $-11$.

Answer 1

Step 1: Write the equation

Let, the number be $x$.

So, the equation is $x+5=-11$

Step 2: Solve the equation

$$\begin{gathered} x+5=-11 \\ x=-11-5 \\ x=-16 \end{gathered}$$

Hence, the solution of the equation is $-16$.