The sum of 15 and the product of 5 and v

The equation in words would be 15 + 5v = 0

To figure out the solution you would subtract 15 from both sides.

15-15+5v=0-15

This equals: 5v=-15

To get the v by itself divide both sides by 5.

This gets v on one side (the left) and - 15 divided by 5.

-15 divided by 5 is - 3.

So the solution would be v=-3