plot the solution of the equation on the number line

Answer:
Explanation:
Given the equation:
[tex]7x+7=-14[/tex]First, subtract 7 from both sides:
[tex]\begin{gathered} 7x+7-7=-14-7 \\ 7x=-21 \end{gathered}[/tex]Next, divide both sides by 7:
[tex]\begin{gathered} \frac{7x}{7}=-\frac{21}{7} \\ x=-3 \end{gathered}[/tex]The solution of the equation on the number line is shown below: