Banach's fixed point theorem application

Show that the following equation only has one root in $\mathbb{R}$:

$cos(\tfrac{sin(x+2) + 7x + 1}{5} ) - 2x$

Answer

Answers can be viewed only if
  1. The questioner was satisfied and accepted the answer, or
  2. The answer was disputed, but the judge evaluated it as 100% correct.
View the answer
The answer is accepted.
Join Matchmaticians Affiliate Marketing Program to earn up to 50% commission on every question your affiliated users ask or answer.