Solving Two Step Equations with Fractions and Decimals

Mr. Haines introduces solving two-step equations, emphasizing the use of inverse operations. He provides examples and practice problems, guiding students through the process of solving equations step-by-step. The video concludes with an application problem involving temperature conversion, demonstrating the practical use of two-step equations.

What is the essential question guiding the video?

• What does inverse operation mean and how to use it to solve equations?

• How to solve one-step equations?

• How to multiply and divide fractions?

• What is the difference between addition and subtraction?

Tags

CCSS.HSA.REI.A.1

In the equation 2x + 3 = 7, what is the first step to isolate the variable?

• Multiply both sides by 2

• Subtract 3 from both sides

• Add 3 to both sides

• Divide both sides by 2

Tags

CCSS.7.EE.B.4A

What is the value of x in the equation 3x + 2 = 20?

• 6

• 3

• 5

• 4

Tags

CCSS.7.EE.B.4A

In the equation 25 = 1/4n - 3, what is the next step after adding 3 to both sides?

• Add 3 to both sides

• Multiply both sides by 4

• Subtract 3 from both sides

• Divide both sides by 4

Tags

CCSS.7.EE.B.4A

What is the value of n in the equation 25 = 1/4n - 3?

• 7

• 28

• 100

• 112

Tags

CCSS.7.EE.B.4A

In the equation 6 - 3x = 21, what is the first step to isolate the variable?

• Divide both sides by -3

• Multiply both sides by -3

• Subtract 6 from both sides

• Add 6 to both sides

Tags

CCSS.7.EE.B.4A

What is the value of x in the equation 6 - 3x = 21?

• 7

• -7

• 5

• -5

Tags

CCSS.7.EE.B.4A

In the equation -27 = 1.8c + 32, what is the first step to isolate the variable?

• Subtract 32 from both sides

• Divide both sides by 1.8

• Multiply both sides by 1.8

• Add 32 to both sides

Tags

CCSS.7.EE.B.4A

What is the value of c in the equation -27 = 1.8c + 32?

• 59

• -59

• 32.7

• -32.7

Tags

CCSS.7.EE.B.4A

What is the inverse operation of multiplication?

• Multiplication

• Division

• Subtraction

• Addition

Tags

CCSS.HSA.REI.A.1