Asked by Zephyr Benedict
7.4b + 7.61 ≤ 6.06 + 4.3b
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Solve: 7.4b + 7.61 ≤ 6.06 + 4.3b
1. Subtract 4.3b from both sides: 3.1b + 7.61 ≤ 6.06
2. Subtract 7.61: 3.1b ≤ -1.55
3. Divide by 3.1 (positive, so inequality stays): b ≤ -1/2
Answer: b ≤ -0.5 (interval notation: (-∞, -0.5])
1. Subtract 4.3b from both sides: 3.1b + 7.61 ≤ 6.06
2. Subtract 7.61: 3.1b ≤ -1.55
3. Divide by 3.1 (positive, so inequality stays): b ≤ -1/2
Answer: b ≤ -0.5 (interval notation: (-∞, -0.5])
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