Solving Two-Step Equations Effectively

In this video, Miss Munoz continues the series on solving equations, focusing on two-step equations. She provides a detailed explanation and demonstrates solving various examples, including x + 4 = 10, 10 + 5m = 70, 3y - 4 = 20, -23 + 4z = 17, w/2 + 4 = 20, and f/5 - 6 = 2. The video emphasizes the importance of isolating the variable by performing inverse operations, such as addition, subtraction, multiplication, and division. Miss Munoz also highlights the method of checking solutions by substituting the variable back into the original equation.

What is the primary goal when solving an equation?

• To find the value of the variable

• To add all numbers

• To subtract all numbers

• To multiply all numbers

Tags

CCSS.7.EE.B.4A

In the equation x + 4 = 10, what is the first step to isolate x?

• Add 4 to both sides

• Subtract 4 from both sides

• Multiply both sides by 4

• Divide both sides by 4

Tags

CCSS.6.EE.B.7

After subtracting 4 from both sides in the equation x + 4 = 10, what is the next step?

• Divide both sides by 2

• Multiply both sides by 2

• Subtract 2 from both sides

• Add 2 to both sides

Tags

CCSS.6.EE.B.7

In the equation 10 + 5m = 70, what is the first step to isolate m?

• Divide both sides by 5

• Multiply both sides by 5

• Subtract 10 from both sides

• Add 10 to both sides

Tags

CCSS.7.EE.B.4A

After subtracting 10 from both sides in the equation 10 + 5m = 70, what is the next step?

• Divide both sides by 5

• Multiply both sides by 5

• Add 5 to both sides

• Subtract 5 from both sides

Tags

CCSS.7.EE.B.4A

In the equation 3y - 4 = 20, what is the first step to isolate y?

• Divide both sides by 3

• Multiply both sides by 3

• Subtract 4 from both sides

• Add 4 to both sides

Tags

CCSS.7.EE.B.4A

After adding 4 to both sides in the equation 3y - 4 = 20, what is the next step?

• Multiply both sides by 3

• Subtract 3 from both sides

• Divide both sides by 3

• Add 3 to both sides

Tags

CCSS.7.EE.B.4A

In the equation -23 + 4z = 17, what is the first step to isolate z?

• Multiply both sides by 4

• Divide both sides by 4

• Subtract 23 from both sides

• Add 23 to both sides

Tags

CCSS.7.EE.B.4A

In the equation w/2 + 4 = 20, what is the first step to isolate w?

• Add 4 to both sides

• Subtract 4 from both sides

• Multiply both sides by 2

• Divide both sides by 2

Tags

CCSS.7.EE.B.4A

In the equation f/5 - 6 = 2, what is the first step to isolate f?

• Divide both sides by 5

• Multiply both sides by 5

• Subtract 6 from both sides

• Add 6 to both sides

Tags

CCSS.HSA.REI.A.1