You sell brownies for $3 each. You sold 12 more this week than last. Altogeth, you made $84. How many brownies did you sell each week?

Question

need equation, steps, and answer

Answer 1

ALTOGETHER   you sold w (last week) plus w+12, which is 2w+12 brownies sold.

 

At $3 each (I hope these are really big, for such a price), 3[2w+12] = 84.

 

Solve for w.