One Step Equations

What what is the inverse operation of subtraction?

• addition
• subtraction
• multiplication
• division

What is the first step when solving an equation?

• Isolate the variable

• Randomly guess and check

• subtract from both sides

• draw a line down the equal sign

Which of the following can always be used to check your solution to your equation?

• distributive property
• difference
• substitution
• mean

Which number do you need to get rid of?

• 7.2

• -14

Solve for z in the following equation:

z - 33 = 147

• z= 114

• z = 177

• z = 180

• No Solution

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.

r + 20 = 27

• r = 7
• r = 47
• r = 13
• r = 20

S + 18 = 24

• S = 42
• S = 3²
• S = 18
• S = 4 + 2 

What is the solution for x + 9 = 21

• 10
• 12
• 11
• 13

x - 8 = -5 

• 13
• -13
• 3
• -3