Question

Determinati numarul x ,stiind ca :57/31-16/31=x-21/31

Answer 1

41/31=x-21/31
x=41/31+21/31
x=62/31 
x=2

Answer 2

57/31-16/31 = x-21/31
57/31-16/31 = 31x/31-21/31
57-16 = 31x-21
41 = 31x-21
31x = 41+21
31x = 62
x = 62/31
x = 2.



I hope I helped you :)