Adding and Subtracting Linear Expressions

The video tutorial provides an overview of adding and subtracting linear expressions. It explains how to add linear expressions by gathering like terms and using the stacking method. For subtraction, it demonstrates converting the problem into an addition problem by adding the opposite of the second expression. The tutorial emphasizes understanding the movement on a number line to simplify expressions and achieve the correct result.

What is the first step in adding linear expressions?

• Drop the parentheses and combine like terms

• Subtract the expressions

• Divide the expressions

• Multiply the expressions

In the stacking method, what do you do after lining up like terms?

• Add the coefficients

• Multiply the coefficients

• Divide the coefficients

• Subtract the coefficients

What is the result of adding 2x and -4x?

• -2x

• 6x

• 0

• 2x

How do you handle subtraction in linear expressions?

• Add the opposite of the second expression

• Multiply both expressions

• Divide the first expression by the second

• Subtract the first expression from the second

What is the opposite of subtracting 2 in linear expressions?

• Adding 4

• Subtracting 2

• Subtracting 4

• Adding 2

When subtracting linear expressions, what is the result of 4y - 6y?

• 0

• 2y

• -2y

• 10y

What is the final result of subtracting 4y - 5 from -6y + 2?

• 10y - 7

• -10y + 7

• 2y + 3

• -2y - 3

In the stacking method for subtraction, what do you do after changing the sign of the second expression?

• Subtract the expressions

• Divide the expressions

• Line up like terms and add

• Multiply the expressions

What is the result of adding -5 and 2?

• 7

• -3

• 3

• -7

What is the key concept in both adding and subtracting linear expressions?

• Multiplying coefficients

• Dividing terms

• Combining like terms

• Ignoring parentheses