Question

Quinn started off with twice as much candy as Denali but then ate 4 pieces . when Quinn and Denali put their candy together they now have a total of 50 pieces how many pieces did Denali start with?

Answer 1

To answer this question you will use the relationship between Denali and Quinn's number of pieces of candy. Create an equation only using d (the number of pieces of candy Denali has).

Quinn's candy - (2d + 4)
Denali's candy - d

So, (2d + 4) + d = 50.

Solve for d.

3d + 4 = 50
3d = 54
d = 18 pieces