Expressions and Combining Like Terms

Simplify 3x + 4x

• 12x

• 7x

• 3x

• 4x

Simplify -4x - 5x + 8

• x + 8

• 20x + 8

• 9x + 8

• -9x + 8

Which value represents the constant in the expression 3x + 2y - 5?

• 3

• 2

• 5

• -5

How many terms are in the expression 4a + b - 2c + 5

• 4

• 3

• 2

• 1

Simplify the expression by COMBINING LIKE TERMS.

Mathematical Equivalence

ON

Nicholas's teacher gave him the final expression "7x+5" and asked him to match this with two correct original expressions given in the list below. Which two original expressions simplify to 7x+5?

• 2x + 1+ 5x + 4

• 10x + 2 - 3x + 3

• x +2 + 4x + 5

• 2x+ 3+ 3x + 4

Nicholas's teacher gave him the final expression "7x+5" and asked him to match this with two correct original expressions given in the list below. Which two original expressions simplify to 7x+5?

• 2x + 1+ 5x + 4

• 10x + 2 - 3x + 3

• x +2 + 4x + 5

• 2x+ 3+ 3x + 4

• The 3y is being distributed

Mrs. Salpietro has 8x+7 feet of rope for a project she is making. But she needs another 15 feet still. How much rope will she have total for her project?

• 8x+22 feet

• 23x + 7 feet

• 30x feet

• 30 feet

What is the coefficient of the x-term in the expression 3x + 2y + z

• 1

• 2

• 3

• 5