x-3=-2(x+5)

Simple one $${\mathtt{x}}{\mathtt{\,-\,}}{\mathtt{3}} = {\mathtt{\,-\,}}\left({\mathtt{2}}{\mathtt{\,\times\,}}\left({\mathtt{x}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}\right)\right) \Rightarrow {\mathtt{x}} = {\mathtt{\,-\,}}{\frac{{\mathtt{7}}}{{\mathtt{3}}}} \Rightarrow {\mathtt{x}} = -{\mathtt{2.333\: \!333\: \!333\: \!333\: \!333\: \!3}}$$

x=-2.3 and the other x is-7/3

Angelo

x-3=-2(x+5)    simplify

x - 3 = -2x - 10      add 3, 2x to both sides

3x  = -7      divide both sides by 3

x = -7/3