$$7\frac{1}{6}-(x+2\frac{5}{6})=1\frac{4}{6}$$
$x = \frac{8}{3} = 2\frac{2}{3} \approx 2.666666667$
$$7\times 6+1-6\left(x+\frac{2\times 6+5}{6}\right)=1\times 6+4$$
$$42+1-6\left(x+\frac{2\times 6+5}{6}\right)=1\times 6+4$$
$$43-6\left(x+\frac{2\times 6+5}{6}\right)=1\times 6+4$$
$$43-6\left(x+\frac{12+5}{6}\right)=1\times 6+4$$
$$43-6\left(x+\frac{17}{6}\right)=1\times 6+4$$
$$43-6x-6\times \frac{17}{6}=1\times 6+4$$
$$43-6x-17=1\times 6+4$$
$$26-6x=1\times 6+4$$
$$26-6x=6+4$$
$$26-6x=10$$
$$-6x=10-26$$
$$-6x=-16$$
$$x=\frac{-16}{-6}$$
$$x=\frac{8}{3}$$
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