What is the solution of the inequality shown below? 1 + a 4 enter the correct answer

We are given the following inequality:
[tex]1+a\le4[/tex]To solve this inequality we will subtract 1 to both sides:
[tex]\begin{gathered} 1-1+a\le4-1 \\ a\le3 \end{gathered}[/tex]And thus we get the solution.