Solving One-Step Equations: Addition and Subtraction

This video tutorial by Mr. J covers how to solve one-step equations involving addition and subtraction. The process involves isolating the variable using inverse operations to maintain balance in the equation. Four examples are provided to demonstrate the method: x - 4 = 7, 15 = m - 11, g + 13 = 19, and 26 = y + 8. Each example is solved step-by-step, emphasizing the importance of keeping the equation balanced by performing the same operation on both sides. The tutorial aims to equip viewers with the skills to solve more complex equations.

What is the first step in solving one-step equations?

• Add the same number to both sides of the equation

• Isolate the variable using the inverse operation

• Multiply both sides by the variable

• Divide both sides by the coefficient

What principle is emphasized as crucial in solving one-step equations?

• Multiplying both sides by the variable

• Isolating the variable

• Using only mental math

• Ignoring the balance

In Example 1, what operation is used to isolate the variable?

• Addition

• Division

• Multiplication

• Subtraction

What is the result of x in Example 1?

• 7

• 11

• 4

• 15

In Example 2, what value is added to both sides to isolate the variable?

• 11

• 26

• 11 minus m

• 15

What is the value of m in Example 2?

• 15

• 11

• 4

• 26

In Example 3, what operation is performed to isolate the variable?

• Addition

• Subtraction

• Multiplication

• Division

What is the final value of g in Example 3?

• 6

• 32

• 13

• 19

In Example 4, to isolate y, what operation is used?

• Subtraction

• Addition

• Multiplication

• Division

What is the final value of y in Example 4?

• 18

• 26

• 34

• 8