Remove parentheses.
\[74883-31200-x=999\]
Simplify \(74883-31200-x\) to \(43683-x\).
\[43683-x=999\]
Subtract \(43683\) from both sides.
\[-x=999-43683\]
Simplify \(999-43683\) to \(-42684\).
\[-x=-42684\]
Multiply both sides by \(-1\).
\[x=42684\]
x=42684
