Question

In the following problem, which step uses the additive identity to get to the next step?

-18 + 73 + 18
-18 + 18 + 73
0 + 73
73

Answer 1

\({\huge\bf\color{red}\bigstar\color{orange}\bigstar\color{goldenrod}{\bigstar}\color{yellow}{\bigstar}\color{lightgreen}{\bigstar}\color{darkgreen}\bigstar\color{turquoise}{\bigstar}\color{royalblue}{\bigstar}\color{purple}{\bigstar}~\color{#00bfff}{\bigstar\bigstar\bigstar}\color{#11c520}{\bigstar\bigstar\bigstar}}\\{\huge\bf\color{red}W\color{orange}E\color{goldenrod}{L}\color{yellow}{C}\color{lightgreen}{O}\color{darkgreen}M\color{turquoise}{E~}\color{royalblue}{T}\color{purple}{O}~~\color{#00bfff}{Open}\color{#11c520}{Study}}\\{\huge\bf\color{red}\bigstar\color{orange}\bigstar\color{goldenrod}{\bigstar}\color{yellow}{\bigstar}\color{lightgreen}{\bigstar}\color{darkgreen}\bigstar\color{turquoise}{\bigstar}\color{royalblue}{\bigstar}\color{purple}{\bigstar}~\color{#00bfff}{\bigstar\bigstar\bigstar}\color{#11c520}{\bigstar\bigstar\bigstar}}\\\small\cal Made~by~@horsegirl27\)