###### Exercise 30

Solve this inequality.

\(\displaystyle{ {4} \lt {-x} }\)

In set-builder notation, the solution set is .

In interval notation, the solution set is .

Solve this inequality.

\(\displaystyle{ {4} \lt {-x} }\)

In set-builder notation, the solution set is .

In interval notation, the solution set is .