1/2х(-3,6)-5

To solve the expression \( \frac{1}{2} \times (-3.6) - 5 \):

1. First, multiply \( \frac{1}{2} \) by \(-3.6\): \[ \frac{1}{2} \times (-3.6) = -1.8 \]

2. Next, subtract 5 from \(-1.8\): \[ -1.8 - 5 = -6.8 \]

Thus, the result of the expression \( \frac{1}{2} \times (-3.6) - 5 \) is \(-6.8\).