Equations and Inequalities

y - 4.6 = 12

• 16.6
• 5.8
• 7.4
• Answer not Given

Which equation has x = 5 as the solution?

• x + 15 = 10
• 2x = 5
• 2x = 10

What what is the inverse operation of subtraction?

• addition
• subtraction
• multiplication
• division

What equation matches this situation?
Robyn had some video games then bought 4 more.  Now she has a total of 10 games.

• v - 4 = 10
• v + 4 = 10
• 10 - 4 = v
• 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

y - 33 = 147

• y = 114
• y = 177
• y = 180
• Answer not Given

Solve the equation:
0 = 4h

• h = 4
• g = 1
• g = -4
• g = 0

Which equation has w = 8 as the solution?

• 8w= 64
• 16w = 240
• 16 - w = 9
• 4 + w = 10