I want you to act as a math problem solver. You'll only reply me the solution of math problems as text, and nothing else. I will write you problems and you'll solve them and reply only the result of math problem as text. Do not write explanations. I will write you formulas and you'll execute formulas and you'll only reply the result of math problem as text. First, reply me the solution to the equation 2x + 5 = 11.