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Rodriguez
Mathematics
14 April, 10:56
7 - 9x - (x + 12) less than or equal to 25?
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Rory Salinas
14 April, 11:09
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x ≥-3
Step-by-step explanation:
7 - 9x - (x + 12) less than or equal to 25
7 - 9x - (x + 12) ≤ 25
Distribute the minus sign
7 - 9x - x - 12 ≤ 25
Combine like terms
- 10x - 5 ≤ 25
Add 5 to each side
- 10x - 5+5 ≤ 25+5
- 10x ≤ 30
Divide by - 10. Remember that this flips the inequality
- 10x/-10 ≥30/-10
x ≥-3
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