Question

 х*(1 2/3+5/9)=2/3                                                   решите уравнения      

Answer 1

$x(1 frac{2}{3}+ frac{5}{9})= frac{2}{3} \ x(1 frac{6}{9}+ frac{5}{9})= frac{2}{3} \ x*1 frac{11}{9}= frac{2}{3} \ frac{20}{9}x= frac{2}{3} \ x= frac{2}{3}: frac{20}{9} \ x= frac{2}{3}* frac{9}{20} \ x= frac{3}{10} \ x=0.3$

Answer 2

рад помочь)

Answer 3

х*(1 2/3+5/9) = 2/3    1 2/3 = 5/3    5/3 + 5/9 = (45+15)/27 =60/27
х*(60/27) = 2/3
x = (2/3):(60/27)
x = (2/3)*(27/60) = (2*27)/(3*60) = 9/30 =3/10 = 0,3
x =  0,3