$${\mathtt{\,-\,}}{\mathtt{6.8}}{\mathtt{\,-\,}}{\frac{{\mathtt{x}}}{{\mathtt{1.2}}}} = -{\mathtt{2.9}}$$
$${\mathtt{\,-\,}}{\mathtt{6.8}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2.9}} = {\frac{{\mathtt{x}}}{{\mathtt{1.2}}}}$$
$${\mathtt{1.2}}{\mathtt{\,\times\,}}\left({\mathtt{\,-\,}}{\mathtt{6.8}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2.9}}\right) = {\mathtt{x}}$$
$${\mathtt{1.2}}{\mathtt{\,\times\,}}\left({\mathtt{\,-\,}}{\mathtt{6.8}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2.9}}\right) = {\mathtt{x}} \Rightarrow {\mathtt{x}} = {\mathtt{\,-\,}}{\frac{{\mathtt{117}}}{{\mathtt{25}}}} \Rightarrow {\mathtt{x}} = -{\mathtt{4.68}}$$
.$${\mathtt{\,-\,}}{\mathtt{6.8}}{\mathtt{\,-\,}}{\frac{{\mathtt{x}}}{{\mathtt{1.2}}}} = -{\mathtt{2.9}}$$
$${\mathtt{\,-\,}}{\mathtt{6.8}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2.9}} = {\frac{{\mathtt{x}}}{{\mathtt{1.2}}}}$$
$${\mathtt{1.2}}{\mathtt{\,\times\,}}\left({\mathtt{\,-\,}}{\mathtt{6.8}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2.9}}\right) = {\mathtt{x}}$$
$${\mathtt{1.2}}{\mathtt{\,\times\,}}\left({\mathtt{\,-\,}}{\mathtt{6.8}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2.9}}\right) = {\mathtt{x}} \Rightarrow {\mathtt{x}} = {\mathtt{\,-\,}}{\frac{{\mathtt{117}}}{{\mathtt{25}}}} \Rightarrow {\mathtt{x}} = -{\mathtt{4.68}}$$