Solving One-Step Equations Adding and Subtracting

Solve the equation:
x - 4 = 6

• x = 10

• x = -10

• x = 2

• x = -2

Solve the equation:
x - 2.6 = -4.6

• x = 2

• x = -2

• x = 7.2

• x = -7.2

Describe how you would isolate the variable.

x + 22 = 64

• Multiply both sides of the equation by 22

• Divide both sides of the equation by 22

• Add 22 to both sides of the equation

• Subtract 22 from both sides of the equation

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

x - 8 = -5 

• 13

• -13

• 3

• -3

x + 3 = 29

• x = 32

• x = 29

• x = 26

• x = 3

What is the inverse of adding?

• Dividing

• Multiplying

• Adding

• Subtracting

Which statement best describes the first step to the equation?

• Add 3 to both sides

• Add 11 to both sides

• Get the variables on one side

• Add 2 to both sides

In order to solve an equation, we must get variables on side of an equation, and constants on the opposite side.

• True

• False

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations

• math

• variable

• PEMDAS