2+х

2+х is the same as x+2 (addition is commutative).

If you want to do something with it:

• Evaluate for a numeric x: e.g., x=3 → 2+3 = 5; x=−2 → 2+(−2) = 0.
• Solve an equation: e.g., 2+x = 7 → x = 5; 2+x = x → no solution.
• If y = 2+x, then the function has slope 1 and y-intercept 2 (graph is a line).

What would you like to do with this expression? Solve, evaluate, or graph?