(?) + 3699 + 1985 - 2047 = 31111

Step-by-Step Solution

To find the value of the unknown (let's call it x), we need to isolate it on one side of the equation.

1. State the equation: x + 3699 + 1985 - 2047 = 31111

2. Simplify the constants on the left side:

   • First, add 3699 and 1985: 3699 + 1985 = 5684

   • Now subtract 2047 from that result: 5684 - 2047 = 3637

   • The equation now looks like this: x + 3637 = 31111

3. Solve for x:

   • Subtract 3637 from both sides to isolate x: x = 31111 - 3637

   • x = 27474