Solve $5x - 3 < 7$ when $x$ is an integer.
A$\{\ldots, -1, 0, 1\}$
B$\{\ldots, -2, -1, 0, 1\}$
C$\{\ldots, -1, 0, 1, 2\}$
D$\{0, 1, 2\}$
Answer & Solution
Correct answer: B. $\{\ldots, -2, -1, 0, 1\}$
$5x < 10 \Rightarrow x < 2$.
Integers strictly less than 2: $\{\ldots, -2, -1, 0, 1\}$.
- **A** stops at $-1$ (misses one or more in the chain).
- **C** includes 2 — but $x < 2$ excludes 2.
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