Writing Two-Step Equations
There are 47 trees currently in the park. Park workers will plant 2 more trees each day. When they're done, there will be 57 trees in the park. How many trees did the workers plant?
2x+47= 57
x = 5 trees
6x + 11 = 65
x = 9
After paying $7 for a stack of brownies and $4 for each cookie, Lacey has $71 left. How many cookies could Lacey buy?
4x + 7 = 71
x = 16
A roller-skating rink charges a $16 fixed fee plus $7 an hour for a party. Laurie paid $79 to rent the rink. How many hours did she pay to have her party?
16 + 7x = 79
9x - 21 = 60
x = 9
424 students went on a trip to the zoo. All 7 buses were filled, and 4 students have to travel in cars. How many students were in each bus?
7x + 4 = 424
x = 60 Students
After eating at a restaurant, Fred, Sam, and Janice decided to divide the bill evenly. If each person paid the same amount and Fred tipped $9. How much did each person pay if the total was $39
3x + 9 = 39
x = $10
g/-5 + 3 = -13
g = 80
The Logan family is renting a beach house from Aqua Coast Beach Rentals. Mr. Logan called the rental agency ahead of time to get the total cost for 9 days. The rental agent explained that since the family plans to stay during the off-season, there will be a one-time discount of $25 applied to their rental cost. The Logans will pay $920 in all.
9d-25=920