8 + 3.X = 68
3.X = 68 - 8
3.X = 60
X = 60 : 3
X = 20
3.X = 68 - 8
3.X = 60
X = 60 : 3
X = 20
8 + 3.x = 68
3.x = 68 - 8
3.x = 60
x = 60 : 3
x = 20
\(8+3\times x=68\)
\(3\times x=68-8\)
\(3\times x=60\)
\(x=60:3\)
\(x=20\)
x = 68 - 8
x = 60 : 3
x = 20
Vậy: x = 20