$$\left. \begin{array} { l } { 16 x + \frac { 42 } { 8 } = 6 x + 14 } \end{array} \right.$$
$x=\frac{7}{8}=0.875$
$$16x+\frac{21}{4}=6x+14$$
$$16x+\frac{21}{4}-6x=14$$
$$10x+\frac{21}{4}=14$$
$$10x=14-\frac{21}{4}$$
$$10x=\frac{56}{4}-\frac{21}{4}$$
$$10x=\frac{56-21}{4}$$
$$10x=\frac{35}{4}$$
$$x=\frac{\frac{35}{4}}{10}$$
$$x=\frac{35}{4\times 10}$$
$$x=\frac{35}{40}$$
$$x=\frac{7}{8}$$
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