Solving Two Step Equations

5n = 30

• 8

• 12

• 6

• 5

-42 = -6y

• 36

• 7

• -36

• -7

The objective when solving an equation is to....

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

Solve the following two-step equation

2x - 14 = 34

• x = 10

• x = 48

• x = 40

• x = 24

To Solve a Simple Two-Step Equation you need to ...

• Undo the Addition/Subtraction first (to remove the constant term), then undo the Multiplication /Division (to remove the coefficient and isolate the variable)

• Undo the Multiplication/Division first (to remove the coefficient and isolate the variable), then undo the Addition/Subtraction (to remove the constant term)

• Multiply both sides by 1

• Substitue zero for the variable (to remove the variable and isolate the constant

What is the first step you would do to solve the following equation?

2x - 14 = 34

• Add 14 to both sides

• Subtract 14 from both sides

• Divide both sides by 2

• Combine like terms

What is the first step you would do to solve the following problem

(x-11)/8 = 13

• Multiply both sides by 8

• Add 11 to both sides

• Divide both sides by 8

• Subtract 11 from both sides

What value for x makes the following equation true? 12x + 4x = 64

• x = 4

• x = 16

• x = 8

• x = -4

Using the "Cover-Up" method (to solve without showing your work), you would cover up which term first?

5x + 3 = 28

• +3

• 5x

• 28

• =

Using the "Cover-Up" method (to solve without showing your work), you would cover up which term second?

5x + 3 = 28

• +3

• 5x

• 28

• =