$${\mathtt{4}}{\mathtt{\,\times\,}}{\mathtt{\,-\,}}\left({\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{y}}\right) = {\mathtt{700}} \Rightarrow {\mathtt{y}} = {\mathtt{\,-\,}}{\frac{{\mathtt{175}}}{{\mathtt{2}}}} \Rightarrow {\mathtt{y}} = -{\mathtt{87.5}}$$
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