Solving and Verifying Equations

The video tutorial explains how to solve equations using addition and subtraction. It provides three examples: solving x + 3 = 7 by subtracting 3 from both sides, solving x - 4 = -9 by adding 4 to both sides, and solving 5 = x + 2 by subtracting 2 from both sides. Each example includes a step-by-step process and verification of the solution.

What is the main focus of the video?

• Solving equations using multiplication and division

• Solving equations using addition and subtraction

• Graphing linear equations

• Solving quadratic equations

What operation is used to isolate x in the equation x + 3 = 7?

• Division

• Multiplication

• Subtraction

• Addition

After isolating x in x + 3 = 7, what is the value of x?

• 6

• 5

• 4

• 3

What is the result of subtracting 3 from both sides of the equation x + 3 = 7?

• x = 10

• x = 4

• x = 7

• x = 3

How can you verify the solution to x + 3 = 7?

• By substituting x with 3

• By substituting x with 4

• By substituting x with 5

• By substituting x with 2

What operation is used to isolate x in the equation x - 4 = -9?

• Division

• Subtraction

• Multiplication

• Addition

After isolating x in x - 4 = -9, what is the value of x?

• -6

• -3

• -4

• -5

What is the result of adding 4 to both sides of the equation x - 4 = -9?

• x = -4

• x = -9

• x = -5

• x = -13

How can you verify the solution to x - 4 = -9?

• By substituting x with -4

• By substituting x with -6

• By substituting x with -5

• By substituting x with -3

What operation is used to isolate x in the equation 5 = x + 2?

• Division

• Addition

• Multiplication

• Subtraction