-16<-3x+8<-7?

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whats the answer to this problem? work out if possible :?

2007-10-03 11:29:44 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

-16 < -3x +8 < -7
7 < 3x - 8 < 16
15 < 3x < 24
5 < x < 8

2007-10-03 11:35:45 · answer #1 · answered by Tan Z 3 · 0⤊ 0⤋

-16<-3x+8<-7?Subtract 8 from all terms getting:
-24 <-3x <-15
Divide all terms by 3, getting:
-8 <-x <-5
Multiply all terms by -1 getting:
8> x > 5

2007-10-03 18:37:41 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋

any number greater than 8
and 8 in the equation will give you -16, a 9 will give you -19 which is less than -16.

-16<3(any number >8)<-7

2007-10-03 18:46:30 · answer #3 · answered by ootsae 2 · 0⤊ 0⤋