Question

solve for z.\
z + 3 = 18\
z = \boxed{}

Explanation:

Step1: Subtract 3 from both sides

To isolate \( z \), we subtract 3 from both sides of the equation \( z + 3 = 18 \). This gives us \( z + 3 - 3 = 18 - 3 \).

Step2: Simplify both sides

Simplifying the left side, \( z + 3 - 3 \) becomes \( z \). Simplifying the right side, \( 18 - 3 = 15 \). So \( z = 15 \).

Answer:

\( 15 \)