Identify the like terms in the expression 7s + 9y + y.

Identify the like terms in the expression 7s + 9y + y.

• A. 7s and y
• B. 9y and y
• C. 7s and 9y
• D. 7y and y

Answer: (B)

Like terms are terms that contain the same variable to the same power. In 7s + 9y + y, the terms with the same variable are the ones with y: 9y and y (since y is y^1). They are like terms and can be combined to 10y. The term 7s has a different variable (s), so it cannot be combined with the y terms. Therefore, the like terms are the two y-terms.

Like terms are terms that contain the same variable to the same power. In 7s + 9y + y, the terms with the same variable are the ones with y: 9y and y (since y is y^1). They are like terms and can be combined to 10y. The term 7s has a different variable (s), so it cannot be combined with the y terms. Therefore, the like terms are the two y-terms.