Answer:
In order to find x, you will have to use the operation of equality to isolate the x.
[tex]15x=-10[/tex]
Now, use the division property of equality and divide by 15 on both sides. This will cancel out the 15 on the left side of the equation and isolate the x completely.
[tex]-10/15=\frac{-2}{3}[/tex]
Thus, this is your answer:
[tex]\boxed{x=-\frac{2}{3} }[/tex]