\( \begin{array}{l}x+y=z \\ x=2 \\ y=3 \\ z=?\end{array} \)
\( z=x+y=2+3=5 \)
Step 1 :\( x=2 \)
Step 2 :\( y=3 \)
Step 3 :\( z=x+y=2+3=5 \)