how would you write thirteen is seven more than one fifth a number

$${\mathtt{13}} = {\frac{{\mathtt{1}}}{{\mathtt{5}}}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,\small\textbf+\,}}{\mathtt{7}}$$

$${\mathtt{13}}{\mathtt{\,-\,}}{\mathtt{7}} = {\frac{{\mathtt{1}}}{{\mathtt{5}}}}{\mathtt{\,\times\,}}{\mathtt{x}}$$

$${\mathtt{6}}{\mathtt{\,\times\,}}{\mathtt{5}} = {\mathtt{x}}$$

$${\mathtt{x}} = {\mathtt{30}}$$

$${\mathtt{13}} = {\frac{{\mathtt{1}}}{{\mathtt{5}}}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,\small\textbf+\,}}{\mathtt{7}} \Rightarrow {\mathtt{x}} = {\mathtt{30}}$$

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