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Mathematics 11 Online
OpenStudy (anonymous):

-1/2|x+7|=6 i got -19,5 is this correct?

jimthompson5910 (jim_thompson5910):

-1/2|x+7|=6 |x+7|=6*(-2) |x+7| = -12 so there are NO solutions since the result of any absolute value is NEVER negative

OpenStudy (anonymous):

oh yeah i forgot about that

OpenStudy (anonymous):

i have one more for you tyo look at

OpenStudy (anonymous):

|x+7|+15>12 at first i had -10<x<-4 , but then i got no solution i don't know which one it is

jimthompson5910 (jim_thompson5910):

|x+7|+15>12 |x+7|>12-15 |x+7| > -3 I'll let you finish

OpenStudy (anonymous):

once again no solution

jimthompson5910 (jim_thompson5910):

no, the opposite actually, you'll have infinitely many solutions

jimthompson5910 (jim_thompson5910):

|x+7| is always positive or 0, so it's always larger than some negative number

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