Solve Two-step Equations

Solve Two-step Equations

​By Mr. Omar Shishani

Multiple Choice

Quick Check: Find the value of the following equation:

$$\frac{x}{2}=4$$  

• x = 8

• x = 2

• x = -8

• x = -2

Multiple Choice

Quick Check: Find the value of the following equation:

$$4x=20$$  

•  x = 5

•  x = 4

• x = 20

Multiple Choice

Quick Check: Find the value of the following equation:

$$\frac{3x}{4}=9$$  

• x = 12

• x = -12

• x = 36

• x = 9

• Start with the Weakest mathematical operation.

• Solving equations means going in reverse. That's why strongest operation will at the end.

​

​Where to start?

Hotspot

Which operation should I start with?

Multiple Choice

Solve the following equations:

3x + 2 = 8

• x = 2

• x = 3

• x = 4

• x = 5

• x = 6

Multiple Choice

Solve the following equations:

5x + 3 = 28

• x = 3

• x = 4

• x = 5

• x = 6

• x = 7

Multiple Choice

Solve the following equations:

4x - 6 = 2

• x = -3

• x = -4

• x = 4

• x = 2

Multiple Choice

Solve the following equations: -4x + 5 = 21

• x = -3

• x = -4

• x = 4

• x = -6

• x = 3

Multiple Choice

Solve the following equations: -2x - 5 = 5

• x = -5

• x = -4

• x = 5

• x = -6

• x = 3

Multiple Choice

Solve the following equations:

-2x - 5 = -5

• x = 0

• x = -4

• x = 5

• x = -6

• x = 3

The steps to solve two-step equations:

• Start with the Weakest mathematical operation.

• Solving equations means going in reverse. That's why strongest operation will at the end.

Decimal numbers, NO Worries!!!

• The strategy doesn't change!

• Do the same thing as you were doing!

Multiple Choice

Solve the following equation:

0.25x - 0.25 = 5

• x = 21

• x = 20

• x = 19

• x = 22

Multiple Choice

Solve the following equation:

0.75x + 0.25 = 3.75

• x = 4.66

• x = 4.55

• x = 4.44

• x = 4.77

Multiple Choice

Solve the following equation:

3.35x + 0.5 = 9.75

• x = 2.76

• x = 2.67

• x = 2.56

• x = 2.87