one step equations

Solve the equation: 
x + 7 = 12

• x = 5
• x = 19
• x = -5
• x = 84

Solve the equation:
x - 4 = -3

• x = -7
• x = 1
• x = 12
• x = -12

Solve the equation:
x - 4 = 6

• x = 10
• x = -10
• x = 2
• x = -2

r + 20 = 27

• r = 7
• r = 47
• r = 13
• r = 20

What what is the inverse operation of subtraction?

• addition
• subtraction
• multiplication
• division

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.

When solving 234 + N =389, what operation would you use to find the answer

• multiplication
• addition
• subtraction
• division

What is the solution of the equation? 
8 = x + 1

• 9
• 7
• 6
• 8

x - 10 = 20

• x = 20/10
• x = 20
• x = 10
• x = 30

What is the solution of the equation? 
8 = x + 1

• 9
• 7
• 6
• 8