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Solve the inequality. Show your work. |r + 3| = 7
Inequality of |r + 3| = 7 is r = 4 or r = -10 Solution; Solve for r over the real numbers: abs(r+3) = 7 Eliminate the absolute value. Split the equation into two possible cases: r+3 = 7 or r+3 = -7 Look at the first equation: Solve for [ r. Subtract 3 from both sides: r = 4 or r+3 = -7 Look at the second equation: Solve for r. Subtract 3 from both sides: Answer: | | r = 4 or r = -10 ]
Expert answered|emdjay23|Points 955|
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Asked 4/6/2013 7:19:28 PM
Updated 7/23/2014 12:16:18 PM
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|r + 3| = 7; r = 4 or r = -10

r + 3 = 7; r = 7 - 3; r = 4;
-(r + 3) = 7; -r - 3 = 7; -r = 7 + 3; -r = 10; r = -10
Added 7/23/2014 12:16:18 PM
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4 square root 6 + 5 square root 6
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Added 1/25/2015 6:40:27 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [1/25/2015 10:09:22 PM]
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