\(813-5x=28\)
\(5x=813-28\)
\(5x=785\)
\(x=785\div5\)
\(x=157\)
813 - 5x = 28
5x = 813 - 28 = 785
x = 785 : 5 = 157
813 - 5x = 28
813 - 28 = 5x
5x = 785
x = 785 : 5
x = 157
Vậy x= 157
813 - 5x = 28
5x = 813 - 28
5x = 785
x = 785 : 5
x = 157
813 - 5x = 28
5x = 813 - 28
5x = 785
x = 785 : 5
x = 157
813 - 5x = 28
5x = 813 - 28
5x = 785
x = 785 : 5
x = 157