2x+4.72=9.18
2x =9.18-4.72
2x =4.46
x =4.46:2
x =2.23
^...^
^_^
\(2x+4.72=9.18\)
\(2x=9.18-4.72\)
\(2x=4.46\)
\(x=4.46:2\)
\(x=2.23\)
Vậy \(x=2.23\)
2x+4,72=9,18
=>2x=9,18-4,72
=>2x=4,56
=>x=4,56:2
=>x=2,28
\(\Rightarrow2x=9,18-4,72\)
\(\Rightarrow2x=4,46\)
\(\Rightarrow x=2,23\)