Sketch the graph $x(t)[\delta(t+\frac{3}{2}) - \delta (t + \frac{3}{2})]$

Question

Sketch and label the following.

When I solve this question, I get two delta functions with the value of $-0.5$, at $t = -3/2$ and $3/2$. But the solution says it should be positive $0.5$ (aka pointing upwards.) What am I doing wrong?