Question

Решите уравнение плиззз (х- 9 3/7)+ 5 8/21=6 5/14

Answer 1

$(x-9 frac{3}{7} )+5 frac{8}{21} =6 frac{5}{14} ; \ x-9 frac{3}{7}=6 frac{5}{14}-5 frac{8}{21}; \ x-9 frac{3}{7}=6 frac{5*3}{14*3}-5 frac{8*2}{21*2}; \ x-9 frac{3}{7}=6 frac{15}{42}-5 frac{16}{42}; \ x-9 frac{3}{7}=5 frac{57}{42}-5 frac{16}{42}; \ x-9 frac{3}{7}= frac{41}{42}; \ x=frac{41}{42}+9 frac{3}{7}; \ x=frac{41}{42}+9 frac{3*6}{7*6}; \ x=frac{41}{42}+9 frac{3}{7}; \ x=frac{41}{42}+9 frac{18}{42}; \ x=9 frac{59}{42}; \ x=10 frac{17}{42}$