Question

помогите решить уравнение : (4 8/21 + z)-7 13/21= 2 12/21

Answer 1

1)$frac{54}{21} + frac{160}{21} = frac{214}{21}$
2)$frac{92}{21} +z= frac{214}{21}$
3)$z= frac{214}{21} - frac{92}{21} = frac{122}{21}$