Equivalent Equations

Is this equation balanced?

6y( 7 + 6 ) = 78y

Is this equation balanced?

3( 4y + 3 ) = 12y + 6

Is this equation balanced?

5y + 6x - 5 = 2y + 2x -10 + 3y + 4x + 5

The area of a rectangle is 42 squared feet. The width of the rectangle is 8 feet. What is the length? Area = length x width

If chocolate chip cookies cost $3.00 per cookie plus $2 for boxing them up in a decorated box, what would the expression be?

Mallory bought pizza and soda for a party. If she spent $12.57 on the sodas and $10.95 for each pizza, how many pizzas did she buy if her total is $89.22?

Charlie has some candy. He shares ten pieces with Betsy and is left with 24 pieces. Which equation should I use to solve this problem?

Carol’s class had 25 students on roll. After some new students join her class, the number of students increases to 36. Write an equation to determine the number of students who joined Carol's class.

Which choice models this situation?

Last week, Tina worked 35 hours in 5 days. She worked the same number of hours each day. How many hours did she work each day?

Which choice models this situation?

At Pierce County Middle School, there are 5 art classes with 24 students in each class. How many students altogether are in the art classes?