Question

what value of z makes the equation below true?
3z + 8 = 20
answer
4
8
10
13

Explanation:

Step1: Subtract 8 from both sides

To isolate the term with \( z \), we subtract 8 from both sides of the equation \( 3z + 8 = 20 \). This gives us \( 3z + 8 - 8 = 20 - 8 \), which simplifies to \( 3z = 12 \).

Step2: Divide both sides by 3

Now, to solve for \( z \), we divide both sides of the equation \( 3z = 12 \) by 3. So, \( \frac{3z}{3} = \frac{12}{3} \), which simplifies to \( z = 4 \).

Answer:

4