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

2 Answers
Gió
Feb 20, 2017

I tried this:

Explanation:

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

Jim G.
Feb 20, 2017

#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"#

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