Expressions and Equations Review

Solve   -5t + 9 = 24

• -3
• 3
• 12

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5
• Add 6 to both sides and multiply both sides by 5
• Subtract 6 from both sides then multiply both sides by 5
• Subtract 6 from both sides then divide both sides by 5

In the equation
4p = 20
 the variable, p, is being multiplied by 4. How should you show your work to isolate the variable and solve the equation?

• Multiply both sides by 4.
  The solution is x = 80.
• Subtract 4 from both sides. 
  The solution is p = 16.
• Add 4 to both sides. The solution is p = 24.
• Divide both sides by 4. The solution is p = 5.

y - 4.6 = 12

• 16.6
• 5.8
• 7.4
• Answer not Given

The objective when solving an equation is to....

• isolate the variable.
• check the solution.
• guess and check.
• Combine Like Terms.

Solve the equation below:

• k = 152
• k = 176
• k = 5
• k = 27

WRITE AN EQUATION
You bought a $5 magazine and four
erasers. You spent a total of $25. How
much did each eraser cost?

• 5+x=25
• 5+4x=25
• 5x=25
• 23-5=4x

Factor:
12x-18

• 2(6x-9)
• 6(2x-3)
• 2(6x+9)
• 6(2x+3)

Simplify   
5(2 - 7n)

• 52 - 7n
• 10 - 7n
• 10 - 35n
• 10 + 35n

Solve for the variable.
3⁄5 x=12

• 20
• -20
• 7 1⁄5
• -7 1⁄5