You can put this solution on YOUR website! Use the properties which you are (probably) studying. Multiply what can be multiplied and then simplify using inverse operations to maintain equality; arrange the variable to be on one side and all constants on the other side through using the number properties.
Start with Distributive Property.
Various ways to go from here, but, add 2b to both sides. , not showing the actual step, but just the result.
Add negative 5 to both sides...