$$5(4x-3)=11$$
$x = \frac{13}{10} = 1\frac{3}{10} = 1.3$
$$4x-3=\frac{11}{5}$$
$$4x=\frac{11}{5}+3$$
$$4x=\frac{11}{5}+\frac{15}{5}$$
$$4x=\frac{11+15}{5}$$
$$4x=\frac{26}{5}$$
$$x=\frac{\frac{26}{5}}{4}$$
$$x=\frac{26}{5\times 4}$$
$$x=\frac{26}{20}$$
$$x=\frac{13}{10}$$
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