Question

solve the equation $12 + z = 45$. what is the value of $z$? $\

$$\begin{align}12 + z &= 45\\\\ - 12 \\quad \\quad & - 12\\\\ z &= \\square\\end{align}$$

$ subtract 12 on both sides.

Explanation:

Step1: Subtract 12 from both sides

To solve for \( z \) in the equation \( 12 + z = 45 \), we subtract 12 from both sides of the equation. This gives us \( 12 + z - 12 = 45 - 12 \).

Step2: Simplify both sides

Simplifying the left side, \( 12 - 12 + z = z \). Simplifying the right side, \( 45 - 12 = 33 \). So we have \( z = 33 \).

Answer:

\( 33 \)