Question

How do you solve compound inequalities `4x<16` or `12x>144`?

Answer 1

`{x|x<4 or x>12}`

Explanation:

we'll look at `4x<16`: let's devide it by 4 and we obtain: `x<4`
let's look at the other one: `12x>144`. we divide it by 12 and obtain `x>12`. so we have that `x<4` , `x>12`, which means: that x must be less than 4, or x must bigger than 12 i.e: `{x|x<4 or x>12}`

hope it helps