Start by subtracting 10 from both sides to get
alone.
+ 10 = -5
+ 10 - 10 = -5 -10
= -15
Now divide each side by 1 to get rid of the negative.
= -15
![(-x)/(-1) = (-15)/(-1)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/fjj4uq3y92ya3i5dryz1pj1cpr48cc1xaz.png)
= 15
This means that in the equation
is 15.
If you want to check if that's correct just plugin 15 for
into the equation.
+ 10 = -5
↓
-15 + 10 = -5 ✓
![correct](https://img.qammunity.org/2019/formulas/mathematics/middle-school/7422qt8clseloaiz8lhchvfiiocu5y3c7q.png)
- Marlon Nunez