Combining Like Terms Positive and Negative With Variables

Simplify by combining like terms.
-14w + 8 + 9w - 2

• 23w + 6

• -23w + 6

• -6w + 7

• -5w + 6

Simplify by combining like terms.
-8c + 12c - 17 + 21c - 4

• 25c - 21

• 4c - 17

• 21c + 25

• 4c - 13

How many terms does this expression have?
3x + 5y - 17 - 2y + x

• 3

• -17

• 5

• 1

Which of these are like terms?
-3x + 4 - 8x + 2xy

• -3x and -8x

• -3x and 4

• -3x and -8x and 2xy

• -8x and 2xy

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

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

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

Simplify by combining like terms.

m + 9 - 4m

• 5m

• m + 5m

• -3m + 9

• -4m + 9

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

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4