Question

Number 4 solve , thanks.

Answer 1

I believe the correct answer is A

Ur welcome

Answer 2

Answer:

The answer is option 1

Step-by-step explanation:

In order to find the value of z, you have to get rid of all the unrelated variable :

$7 - \sqrt{3z + 2} = 4$

$- \sqrt{3z + 2} = 4 - 7$

$- \sqrt{3z + 2} = - 3$

$\sqrt{3z + 2} = 3$

$3z + 2 = {3}^{2}$

$3z + 2 = 9$

$3z = 7$

$z = \frac{7}{3}$