Unit 2 Review

y - 4.6 = 12

• 16.6
• 5.8
• 7.4
• Answer not Given

Solve the equation
3x = 27. 

• x = 24
• x = 81
• x = 9

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.
• Add 7 to both sides.
  The solution is x = 19.
• Multiply both sides by 7 The solution is x = 84.

Solve the equation:
20.5 = x + 4

• 16.5
• 16.05
• 24.5
• 24.05

3c + 5 = 23

• c = 3
• c = 6
• c = 7
• c = 18

4x + 7 = 23

• x = 16
• x = 4
• x = 9
• x = 12

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.

x/12 - 5 = -6

• -12
• -19
• 11
• 15

Solve: x/2 = -10

• 20
• -20
• 5
• -5

Solve for k:
3k + 5 = 23

• k = 4
• k = 5
• k = 6
• k = 7