Question

tion. (examples 2 and 3)

1. $z - 7 = 19$

Explanation:

Step1: Add 7 to both sides

To solve for \( z \) in the equation \( z - 7 = 19 \), we add 7 to both sides of the equation to isolate \( z \). This is based on the addition property of equality, which states that if we add the same number to both sides of an equation, the equation remains true. So we have:
\( z - 7 + 7 = 19 + 7 \)

Step2: Simplify both sides

Simplifying the left - hand side, \( z-7 + 7=z \). Simplifying the right - hand side, \( 19 + 7=26 \).

Answer:

\( z = 26 \)