2x : 5 = 4
2x = 4 x 5
2x = 20
x = 20 : 2
x = 10
\(2x:5=4\)
\(2x=4.5\)
\(2x=20\)
\(x=20:2\)
\(x=10\)
2.X : 5 = 4
=> 2X = 5 x 4
=> 2X = 20.
=> X = 20 : 2 = 10
Vậy X = 10
2x:5=4
=>2x=4.5
=>2x=20
=>x=20:2
=>x=10
\(2x:5=4\)
\(\Rightarrow2x=4.5\)
\(\Rightarrow2x=20\)
\(\Rightarrow x=20:2\)
\(\Rightarrow x=10\)