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solve the inequality using interval notation

9 (2x+5)>9

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Jared M. | Patient, Experienced, and Knowledgeable Math and Accounting TutorPatient, Experienced, and Knowledgeable ...
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Treat the inequality like an equal sign until you divide or multiply by a negative. Order of operations requires you to first distribute the 9 that's on the left. Your result is 18x+45>9
You still want to isolate (x) so the next step would be to subtract 45 from both sides. Your result is 18x>-36
The last step is to divide both sides by (18) because that's the only thing blocking (x) from being alone on the left side. Your result is x>-2
William S. | Experienced scientist, mathematician and instructor - WilliamExperienced scientist, mathematician and...
4.4 4.4 (10 lesson ratings) (10)
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9(2x + 5) > 9
 
18x + 45 > 9
 
18x > 9 - 45
 
18x > -36
 
x > -2
 
Interval {-2, ∞]