Evaluate Expressions with Like Terms

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

• 25c - 21
• 4c - 17
• 21c + 25
• 4c - 13

What is the coefficient here?
-27m + 5

• 27
• -27
• 5
• m

What is the coefficient here?
17u + 8

• 17
• 8
• 17u
• -8

Like terms have the same _____ and the same _____.

• variables and numbers
• signs and numbers
• variables and exponents
• variables and signs

A constant term has ______.

• no signs
• no variables

A constant term is ______.

• just a number
• a letter
• x
• an expression

A coefficient is __________.

• the variable
• a constant
• an exponent
• the number that comes before the variable

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

• 3
• -17
• 5
• 1

How many terms does this expression have?
-18y + 7yz - 4z

• -18
• 3
• 7
• -4

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

• -3x and -8x
• -3x and 4
• -3x and -8x and 2xy
• -8x and 2xy