Question

Apakah jawaban dari...
a)16<-6a<28?
b)-18<-2/3x<-6
c)-1/4<16

Answer 1

A) 16 < - 6a < 28
- 6a > 16
a < - 8/3

- 6a < 28
a > - 14/3
Gabungan: {x | - 14/3 < a < - 8/3}

b) - 18 < - 2/3 x < - 6
- 2/3 x > - 18
x < 27

- 2/3 x < - 6
x > 9
gabungan: {x | 9 < x < 27}