$$6x(8+5)=7(8-6)$$
$x=\frac{7}{39}\approx 0.179487179$
$$6x\times 13=7\left(8-6\right)$$
$$78x=7\left(8-6\right)$$
$$78x=7\times 2$$
$$78x=14$$
$$x=\frac{14}{78}$$
$$x=\frac{7}{39}$$
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