Solving for X in an equation using subtraction and division

The video tutorial explains how to solve an equation by isolating the variable V. It covers the use of inverse operations to undo addition and subtraction, clarifying common misconceptions about these operations. The tutorial then demonstrates the steps to solve the equation, resulting in the value of V being 19.

What is the first step in isolating a variable in an equation?

• Multiply the variable by a constant

• Add a constant to the variable

• Undo any addition or subtraction

• Divide the variable by a constant

When you see subtraction in an equation, what should you consider?

• The subtraction should be converted to addition

• The number being subtracted is negative

• The number being subtracted is positive

• The subtraction should be ignored

How do you eliminate a positive number from one side of an equation?

• Divide both sides by the number

• Add the same number to both sides

• Multiply both sides by the number

• Subtract the same number from both sides

What operation should be used to isolate a variable that is multiplied by a negative number?

• Divide both sides by the negative number

• Multiply both sides by the negative number

• Subtract the negative number from both sides

• Add the negative number to both sides

What is the result when you divide a negative number by another negative number?

• Zero

• A negative number

• A positive number

• The same negative number