Krista and Alexa played balloon darts in a school fair. Krista popped 6 balloons, which is 1 balloon less than Alexa. Complete the working equation that represents the number of balloon, b, that Alexa popped and solve the equation.
Let b be the number of balloons that Alexa popped.
The working equation can be written as:
b - 1 = 6
Adding 1 to both sides of the equation:
b = 7
Therefore, Alexa popped 7 balloons.