\(15-\left(3x-1\right)=2.3x\)
<=> \(15-3x+1=6x\)
<=>\(16-3x=6x\)
<=> \(3x=16\)
<=> \(x=\frac{16}{3}\)
\(15-\left(3x-1\right)=2\left(3x\right)\)
\(\Rightarrow15-3x+1=6x\)
\(\Rightarrow\left(15+1\right)-3x=6x\)
\(\Rightarrow16-3x=6x\)
\(\Rightarrow6x+3x=16\)
\(\Rightarrow9x=16\)
\(\Rightarrow x=16:9\)
\(\Rightarrow x=\frac{16}{9}\)
Vậy \(x=\frac{16}{9}\)
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