lillycordova02 lillycordova02

31-01-2018
Mathematics

contestada

Solve the inequality:

−7 ≤ x + 21

Write your solution in interval notation.

Respuesta :

freeziescafe freeziescafe

31-01-2018

You want all numbers from -∞ to ∞ except for the two numbers -3 and 3. So you will have one interval that goes from -∞ to -3, (-∞,-3); a second interval from -3 to 3, (-3,3); and a third interval from 3 to infinity, (3,∞). I hope this helps!

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