Question

решите уравнения 7 7/30-(5 11/3030- y)=3 19/30

Answer 1

$7 frac{7}{30} -(5 frac{11}{30} -y)=3 frac{19}{30} \ y=- 7 frac{7}{30} +5 frac{11}{30} +3 frac{19}{30} \ y=- 7 frac{7}{30} +(5 frac{11}{30} +3 frac{19}{30}) \ y=- 7 frac{7}{30} +9 \ y=1 frac{23}{30}$