Algebraic Expressions and Combining Like Terms

Rewrite the expression by combining like terms.
3y + 5x² + 10x + 2x² + 15x – 3y

• 3x² + 3xy + 6y

• 6y² + 2xy + 2x

• 7x² + 25x

• 3x² + 6y² + y

Simplify by combining like terms:

5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Simplify by combining like terms:

3x-5x

• 2x

• 8x

• -2x

• 15x²

Simplify by combining like terms:

-6k + 7k

• k

• -k

• 12k

• -12k

Simplify by combining like terms:

2x + 1 + 7x

• 10x

• 10

• 9x + 1

• 9 + 1x

Julie saved up $265 then bought a sweater for d dollars.
Write your answer as an expression.

• 265 - d

• d - 265

• 265 - s

• s - 265

Sebastian has 12 more trophies than Megan. Megan has t trophies.
Write your answer as an expression.

• t + 12

• 12 + t

• t - 12

• 12 - t

Sarah received $55, for her birthday. She used some of that money to buy 3 shirts priced at m dollars each. How much money does Sarah have left?
Write your answer as an expression.

• 55 - 3m

• 3m + 55

• 55 + 3 + m

• 55m - 3

What are the variables in the expression?
-4x + 6y - 2

• -4x, 6y, -2

• x, y

• 4x, 6y

• -2

What are the coefficients in the expression?
-4x + 6y - 2

• -4x, 6y, -2

• x, y

• 4x, 6y

• -4, 6