Solve for z
z = \frac{7}{2} = 3\frac{1}{2} = 3.5
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z=3+\frac{1}{2}
Add \frac{1}{2} to both sides.
z=\frac{6}{2}+\frac{1}{2}
Convert 3 to fraction \frac{6}{2}.
z=\frac{6+1}{2}
Since \frac{6}{2} and \frac{1}{2} have the same denominator, add them by adding their numerators.
z=\frac{7}{2}
Add 6 and 1 to get 7.
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