Respuesta :
Hey there!
[tex]Answer:\boxed{x=-1}[/tex]
[tex]Explanation:[/tex]
10x - 3 = -5x - 18
10x - 3 + 5x = -5x - 18 + 5x Add 5x to both sides
15 - 3 = -18
15x - 3 + 3 = -18 + 3 Add 3 to both sides
15x = -15
15x/15 = -15/15
x = -1
Hope this helps!