Representing Expressions

Simplify the following expression by combining like terms:
(3b - 4) - (4b + 6)

• -b + 2

• -b - 10

• 7b - 10

• 7b + 2

Simplify the expression: 2x + 1 + 7x 

• 10x

• 10

• 9x + 1

• 9 + 1x

-2x + 11 + 6x

• 8x+11

• 4x +11

• 4x

• 15x

Simplify each expression.

• -4x

• 3x

• 0

• 2x + 2

Simplify each expression.

• -5x

• -4x -2

• -4x + 2

• -5x + 2

Simplify each expression.

• -y + 1

• -2y + 1

• y + 1

• 2y - 1

Look at the model. Which of the following algebraic expressions could it represent?

• 3x + 4 + 2x + 1

• 7x + 3x

• 3x + 2x

• 4 + 1

Look at the model. Simplify the expression it represents by adding like terms.

• 5x + 2x

• 7x + 2

• 7x + 3

• 5x + 5

Area

• 3x + 1

• 2x + 9

• 2x + 8

• 3x² + 1

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4