Combining Like Terms in Expressions

The video tutorial covers section 2.2, focusing on parts of an expression. It begins with an introduction to variable terms, coefficients, and constants. The instructor provides examples of identifying these components in expressions. The tutorial progresses to combining like terms, with practical examples, including handling fractions and finding common denominators. The session encourages students to practice and verify their work, offering support if needed.

Which of the following is a variable term?

• 14

• 8

• 14x

• 9

What is the coefficient in the term -2x?

• -2

• x

• 2

• -x

Identify the constant term in the expression: 14x - 2x + 9.

• 9

• -2x

• x

• 14x

In the expression 11a + 4a, what are the variable terms?

• a and a

• 11 and a

• 11 and 4

• 11a and 4a

What is the coefficient of the term -r?

• -1

• r

• 1

• -r

Combine the like terms: 14x - 2x - 5x.

• 9x

• 7x

• 12x

• 17x

What is the result of combining 1K - 6K?

• 7K

• -7K

• 5K

• -5K

Combine the like terms: -14W + 10W + 2W.

• -2W

• -8W

• -4W

• -6W

What is the common denominator for the fractions 1/4 and 3/8?

• 2

• 16

• 4

• 8

Simplify the expression: 22/8 - 3/8.

• 25/8

• 25/11

• 19/8

• 19/11