Uma wants to buy a video game system for $400. She has $50 and is saving $25 each week. Solve the equation 25w + 50 = 400 to find how many weeks w it will take Uma to save enough to buy the system.
First, you want to subtract 50 from both sides, which gives you 25w = 350. Then, you want to divide 25 by both sides, which gives you a final answer of: