Question

Помогите решить прошу. Срочно

Answer 1

$frac{2frac{2}{7}*(-2,6)*3,5}{4}=frac{frac{4}{13}*(-3,9)*3,25}{x}\\frac{frac{16}{7}*(-frac{13}{5})*frac{7}{2}}{4}=frac{frac{4}{13}*(-frac{39}{10})*frac{13}{4}}{x}\\frac{frac{16*(-13)*7}{7*5*2}}{4}=frac{frac{4*(-39)*13}{13*10*4}}{x}\\frac{frac{-104}{5}}{4}=frac{frac{-39}{10}}{x}\\frac{-104}{5*4}=frac{-39}{10*x}\\-104*10x=5*4*(-39)\-1040x=-780\x=frac{-780}{-1040}\\x=frac{3}{4}ilix=0,75$