Answer :
[tex]2(x-0.1x+2.70)=56.70[/tex]
0pen the brackets
[tex]\begin{gathered} 2x-0.2x+5.4=56.70 \\ 1.8x=56.70-5.4 \\ 1.8x=51.3 \\ x=\frac{51.3}{1.8} \\ x=28.5 \end{gathered}[/tex]0pen the brackets
[tex]\begin{gathered} 2x-0.2x+5.4=56.70 \\ 1.8x=56.70-5.4 \\ 1.8x=51.3 \\ x=\frac{51.3}{1.8} \\ x=28.5 \end{gathered}[/tex]