Simplify z + 2z – 8 + 3z + 1 – 2z

Let’s simplify the expression step by step:

1. Start with the original expression: ( z + 2z – 8 + 3z + 1 – 2z ).

2. Combine like terms (the terms with ( z )):

[

z + 2z + 3z – 2z = (1 + 2 + 3 – 2)z = 4z.

]

3. Now, we combine the constant terms:

[

-8 + 1 = -7.
]

4. Putting it all together, we get:

[

4z – 7.
]

The correct answer is 4z – 7.

This matches with ( 4x – 7 ) in your options if ( x = z ). If you have any more questions or need further clarification, feel free to ask! For more in-depth help, consider checking the extended services page.