Question

How do you write the inequality and solve given "A number decreased by 4 is more than -1"?

Answer 1

I tried this:

Explanation:

I would write these conditions as:
`x-4 > -1`
rearranging:
`x > 4-1`
`x >3`

Answer 2

`x>3`

Explanation:

let the number be represented by x

Then 'decreased' by 4 means `color(blue)"subtracting"` 4 from it.

`rArrx-4" represents the statement"`

`"more than is represented by the symbol " >`

`rArrx-4> -1" is the complete statement"`

To solve this, isolate the x term on the left side of the inequality by adding 4 to both sides.

`xcancel(-4)cancel(+4)> -1+4`

`rArrx>3" is the solution"`