Question

Solve: −4x > 30, when x ∈ Z 

Answer 1

\[- 4x > 30\]
\[ \Rightarrow x < - \frac{30}{4} (\text{ Dividing both the sides by } - 4)\]
\[ \Rightarrow x < - \frac{15}{2}\] 

\[ x \in Z\]
\[\text{ Then, the solution of the given inequation is } \left\{ . . . . . . . . . . - 9, - 8 \right\} . \]