Question

-3z - (-z - 2)
A) -4z + 2
B) -2z - 2
C) -2z + 2
D) 4z + 2

Answer 1

The expression -3z - (-z - 2) simplifies to -2z + 2 by distributing the negative sign and combining like terms.

Step-by-step explanation:

To simplify the expression -3z - (-z - 2), you should begin by distributing the negative sign inside the parentheses.

• First, multiply -1 by -z to get z.
• Next, multiply -1 by -2 to get +2.
• Now, combine like terms.

The expression becomes -3z + z + 2.

Combining -3z and z gives -2z. So the simplified expression is -2z + 2.

Therefore, the correct answer is C) -2z + 2.