Which of the following expressions is equivalent to 9 - 8y - 10 + y?

A. 7y -1
B. -7+19
C. -7y + 1
D. -7y -1

1 answer

To simplify the expression 9 - 8y - 10 + y, combine like terms.

Combine the y terms: -8y + y = -7y

Combine the constant terms: 9 - 10 = -1

The simplified expression is -7y - 1.

Therefore, the answer is D. -7y - 1.