Simplifying Expressions

Simplify:

-5y + 9 + x + 7y - 3

• 2y + x + 6

• -2y + x + 6

• -5y + 9 + x + 7y - 3

• 2y + x - 6

Why are -5x and 6y not like terms?

• Because they have different coefficients

• Because they have different variables

• Because one is positive and one is negative

Simplify:

2(2x + 3) - (5x - 6)

• -x + 12

• 9x

• -x

• x + 12

Which expression is equivalent to 14x - 2?

• 14(x - 2)

• 2(7x -1)

• 7(2x - 2)

• 2(7x - 2)

Simplify:

6x + 7(3x - 5)

• 27x - 35

• 9x + 12

• 27x - 5

• 27x + 35

Which expression represents the perimeter of the triangle?

• 5x + 3

• 3x + 3

• 4x + 3

• 8x

• 11x - 12

• 20x - 12

• 11x - 6

• 10x - 6

What is the sum of (4x + 2y - 8) and (x + y - 2)?

• 8xy - 10

• 4x + 2y - 10

• 5x + 3y - 6

• 5x +3y -10

Which expression is equivalent to -12x + 18?

• -12(x + 18)

• -6(2x + 3)

• -6(2x - 3)

• -6(6x + 12)

Simplify: 6(x - 2) - 3(3x - 1).

• 3x + 15

• -3x - 15

• 15x - 9

• -3x - 9