Question

solve for z.
13.2 + z = 20.2
z = \boxed{}

Explanation:

Step1: Subtract 13.2 from both sides

To solve for \( z \) in the equation \( 13.2 + z = 20.2 \), we use the subtraction property of equality. Subtract \( 13.2 \) from both sides of the equation:
\( 13.2 + z - 13.2 = 20.2 - 13.2 \)

Step2: Simplify both sides

Simplify the left - hand side: \( 13.2 - 13.2+z=z \).
Simplify the right - hand side: \( 20.2 - 13.2 = 7 \).

Answer:

\( 7 \)