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Mathematics 7 Online
OpenStudy (anonymous):

|x+7|+15>12 is this (-10,-4) or no solution because i got both when i did it but don't know which one it is

OpenStudy (mathstudent55):

|x+7|+15>12 Subtract 15 from both sides |x + 7| > -3 You have a negative number on the right side. The absolute value of any number is always non-negative (meaning zero or positive). Therefore, any number you put in for x and add 7 to it, the absolute value of the sum will be non-negative, and a non-negative number is greater than -3. The solution is all real numbers.

OpenStudy (anonymous):

so it would be no solution

OpenStudy (mathstudent55):

No, not "no solution." No solution means there is no number that works. Here it's just the opposite, every real number works. The solution is "all real numbers".

OpenStudy (mathstudent55):

Sorry, I wrote that answer a while ago, but I keep loosing the connection, and it didn't go through.

OpenStudy (anonymous):

it's okay

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