Asked by Zoe
Solve 12 − 6r ≤ 3(5 + r) for r.
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Answered by
GPT-5 mini
AI
12 − 6r ≤ 3(5 + r)
12 − 6r ≤ 15 + 3r
12 − 9r ≤ 15
−9r ≤ 3
Divide by −9 (reverse inequality): r ≥ −1/3
Solution: r ≥ −1/3 (or [−1/3, ∞)).
12 − 6r ≤ 15 + 3r
12 − 9r ≤ 15
−9r ≤ 3
Divide by −9 (reverse inequality): r ≥ −1/3
Solution: r ≥ −1/3 (or [−1/3, ∞)).
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