Решите пожайлуста даю 19 б!!!!!! (0.66-0.012:0,2):(1-1 4/7 * 0.4)= 2 9/13Х:(3,125-5,6: 2...

Решите задачу:

$(0,66-0,012:0,2):(1-1 \frac{4}{7}*0,4 )= 2 \frac{9}{13}x: (3,125-5,6:2 \frac{2}{3} ) \\ (0,66-0,06):(1-\frac{11}{7}* \frac{4}{10} )= \frac{35}{13}x: (3,125- \frac{56}{10} : \frac{8}{3} ) \\ 0,6:(1-\frac{22}{35})= \frac{35}{13}x: (3,125- \frac{21}{10}) \\ \frac{6}{10} :\frac{13}{35}= \frac{35}{13}x: 1,025 \\ \frac{21}{13} *1,025 = \frac{35}{13} x \\ \frac{21*41}{13*40} = \frac{35}{13} x \\ x = \frac{21*41*13}{13*40*35} \\ x= \frac{123}{200} \\ x=0,615 \\ OTBET: 0.615$