Equations with Boxes

17 = x + 3

• x = 20
• x = 14
• x = 13
• x = 19

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 
• Subtract 62 from each side.
• Multiply each side by 62.
• Add 123 to each side.

y - 4.6 = 12

• 16.6
• 5.8
• 7.4
• Answer not Given

Solve the equation
3x = 27. 

• x = 24
• x = 81
• x = 9
• x = 3

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

The area of a rectangular deck is 125 square feet. The width of the deck is 25 feet. Write an equation and solve to find the length.

• 25x=125,
  x = 5 feet
• x+22=125,
  x = 20 feet
• x-25=125
  x=150 feet
• 25x=125
  x=3,125 feet

Choose the correct equation for the situation.
Jane is 3 years older than Sam. If Jane 12, how old is Sam?

• j - 3 = 12
• s - 3 = 12
• s + 3 = 12
• j + 12 = 3

In 2010, a tree was 8 feet tall. In 2011 the tree was 14 feet tall. Which equation would be used to find how many feet the tree grew?

• f + 8 = 14

• f - 8 = 14

• f/8 = 14

• 8f=14

Joey and four of his friends went out to eat. They decided to split the bill evenly. Each person paid $11.13. What was the total bill? Write an equation you could use to solve this equation. Use d as your variable.

• d/4=$11.13
• 4d=$11.13
• d/5=$11.13
• 5d=$11.13

Amy was given an amount of money, m, for a good grades on her report card. She spent $15.00 and now has $25.32. How much money did she get for good grades? Write an equation you could use to solve this problem. Use m as your variable.

• m-25.32=15
• m/25.32
• m-15=25.32
• 15m=25.32