Question

if z/2 +4z/z +5z/2 equal -10
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Answer 1

$\frac{z}{2} + \frac{4z}{z} + \frac{5z}{2} = -10 \\ \frac{z}{2} + 4 + \frac{5z}{2} = -10 \\ \frac{z}{2} + \frac{5z}{2} = -14 \\ z + 5z = - 14 \times 2 \\ 6z = - 28 \\ z = \frac{ - 28}{6} = \frac{ - 14}{3}$