Substitution Combining Like Terms

3x-5x

• 2x

• 8x

• -2x

• 15x²

Which of these are like terms in the following expression:
3x + 7 - 9x + 24y + 2x²

• 7, 24y

• 3x, 9x

• 3x, -9x

• 3x, -9x, 2x²

2(4 + 9w) 

• 8+9w

• 2+9

• 8+18w

• 2+9w

Which answer choice contains ALL like terms?

• -4x, 2x, 3x

• -4x, 2, 3y

• 4x², 2x

• 14, 4x

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

Write an equivalent expression: x + 13y + 8y + 4x

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

Which term can be combined with 4j ? for combining like terms?

• +6j

• 2j + j²

• 4 + 4

• all of the above