###### Exercise130

Solve this inequality.

\(\displaystyle{ {-3x-6} \lt {-21} }\)

In set-builder notation, the solution set is .

In interval notation, the solution set is .

Solve this inequality.

\(\displaystyle{ {-3x-6} \lt {-21} }\)

In set-builder notation, the solution set is .

In interval notation, the solution set is .