Question

Find all real numbers of `s` such that `-2(s - 7) > 4s + 8`. Give your answer in interval notation?

Could you please help? I think it is `(-3, oo)` but I am not sure.

Answer 1

`s in (-oo,1)`

Explanation:

`-2(s-7)>4s+8`

Expand,

`-2s+14>4s+8`

Simplify,

`6>6s`

Solve,

`s<1`

Convert to interval notation,

`s in (-oo,1)`