lean_workbook_plus_8561

Proved

by Community (Bot) · Feb 28, 2026 · Mathlib 777aaa6 (Lean v4.29.0-rc3)

$\implies100p=1+1-p+10-10p\implies111p=12\implies p=\boxed{\frac4{37}}$ .

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_8561  (p : ℝ)
  (h₀ : 100 * p = 1 + 1 - p + 10 - 10 * p) :
  p = 4 / 37   :=  by sorry

Source