Adding and Subtracting Linear Expressions Challenge

What is a linear expression?

• An expression where the variable is raised to the second power

• An expression with multiple variables

• An expression where the variable is raised to the first power

• An expression with no variables

Which of the following is a linear expression?

• 4x^2 - 3x + 1

• 5x - 6

• x^3 + 2

• 2x^2 + 4

How do you combine like terms in the expression 2x + 4 + 5x + 3?

• 7x + 7

• 7x + 1

• 3x + 7

• 3x + 1

What happens to the signs inside the parentheses when a positive sign is outside?

• They become negative

• They change

• They double

• They stay the same

What is the simplified form of -7x - 3 + (-2x + 8)?

• -5x + 11

• -9x + 5

• -9x + 11

• -5x + 5

How do you set up the problem 2x + 4 + (-5x + 3) vertically?

• 2x + 4 + -5x + 3

• 2x + 4 -5x + 3

• 2x + 4 + 5x - 3

• 2x + 4 - 5x - 3

What is the simplified form of 5x + 4 - 2x - 6?

• 7x - 2

• 3x + 10

• 7x + 10

• 3x - 2

What happens to the signs inside the parentheses when a negative sign is outside?

• They become positive

• They change

• They stay the same

• They double

What is the simplified form of 8 - 2(x - 5)?

• 8 - 2x - 10

• 8 - 2x + 10

• 8 + 2x - 10

• 8 + 2x + 10

What is the simplified form of 5x - (x + 4y)?

• 6x - 4y

• 6x + 4y

• 4x - 4y

• 4x + 4y