Question

помогите плиз даю 11 баллов срочно

Answer 1

$\displaystyle \frac{x-4,1}{2,5}=\frac{x+0,8}{5}\\ \\\frac{x-\frac{41}{10} }{\frac{5}{2} }=\frac{x+\frac{4}{5} }{5}\\ \\\frac{\frac{10x-41}{10} }{\frac{5}{2} }=\frac{\frac{5x+4}{5} }{5}\\ \\\frac{10x-41}{25}=\frac{5x+4}{25}\\ \\10x-41=5x+4\\ 10x-5x=4+41\\ 5x=45\\ x=9$