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Mathematics 19 Online
OpenStudy (anonymous):

Solve x + 8 < 3 and x + 9 > -4. A. -5 < x < 5 B. -13 < x < -5 C. x < -13 or x > -5 D. no solution

OpenStudy (anonymous):

I can help you with this.

OpenStudy (anonymous):

First 'solve' x+8 <3 This gives you x < -5

OpenStudy (anonymous):

Then solve the right side, x+9 >-4 or x > 5

OpenStudy (lalaly):

its B because the first one u get x<-5 the second u get x>-13

OpenStudy (anonymous):

ok then what

OpenStudy (anonymous):

so its b?

OpenStudy (anonymous):

but i thought it was c

OpenStudy (lalaly):

yehhh its B

OpenStudy (lalaly):

no the first one u get x<-5 the sec x>-13 which is B

OpenStudy (anonymous):

oh.

OpenStudy (anonymous):

Mathematica says that it is B. Reduce[8 + x < 3 && 9 + x > -4] -> -13 < x < -5

OpenStudy (anonymous):

oooo ok

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