Evaluating, Simplifying and Writing Expressions

Evaluate 3b + 2d

when

b = 3, d = 2

Simplify by combining like terms:

3x-5x

• 2x

• 8x

• -2x

• 15x²

Simplify by combining like terms:

-r -10r

• 11r

• -11r

• 9r

• -11

What is/are the coefficient(s) of
 2x + 9 + 7x?

• 2, 9, 7

• 2, 7

• 2x, 7x

• 9

1) Simplify: -3(-2x - 8) + 15

• -6x - 9

• 6x + 39

• 6x - 9

• 6x + 49

2) Simplify: 7x - 14 - 2(4x + 8)

• -x - 30

• -57x - 128

• -x + 2

3) Simplify: -6 -6p + 6 - 8p

• -12 - 14p

• 14p

• -14p

6) Evaluate: d(-7 - s), when d = -5 and s = -2

• 25

• -25

• 45

• -45

Simplify: 8x - 3y + x - 1 - 10x

• 19x -3y -1

• -4x - 1

• -x -3y - 1

Select all the expressions that are equivalent to 4(3x+4)+5

• 12x+21

• 12x+18+3

• 12x+4+5

• 7x+x+9