4. 7(n - 2) = 14 Distributive Property Add 15 to both sides. Divide both sides by 5.
Solve Two-Step Inequalities
(pages 491–494)
Solve. Diana wants to buy an MP3 player that costs $125. She has saved $45. Diana wants 7. Three students earned more than $90 during last to save equal amounts of money over the month’s bake sale. They used $15 to reimburse their next four months. What is the least amount she parents for the baking goods. Then they divided the should save each month to buy the MP3 player? remaining money equally. How much did each student Solve an inequality that involves the amount earn? saved so far, the amount she needs in all, and how much money x she needs to save each month. 4x + 45 ≥ 125 Use ≥ to represent “at least.” - 45 - 45 Subtract 45 from each side. −−− −−− 4x ≥ 80 4x ≥ _ 80 _ 4 4 x ≥ 20; at least $20 per month
