Question

Is the equality sometimes always or never true? -2(2x+9)> -4x + 9

Answer 1

-2(2x+9)>-4x+9
1)We solve this inequation:
-2(2x+9)>-4x+9
-4x-18>-4x+9
-4x+4x-18>9
-18>9 This is not true, because -18<9; Therefore this inequation is never true.

Answer: this inequation is never true.

Answer 2

`-2(2x+9)\ \textgreater \ -4x + 9`


`-4x-18\ \textgreater \ -4x+9`


`-18\ \textgreater \ 9`
`\text{Cancel -4x from both sides}`


`\text{No Solution}`