Raymond Y. answered • 09/20/12
Tutor
New to Wyzant
Reilley The Tutor
When solving inequalities, the sign is flipped when dividing theequation. In this one, though, it's not necessary.
S+9>24 make sure you're going in the right direction. In this case, the inequality is greater than a numerical value. When graphing, make sure of 2 things: 1. The line is dotted. This is because the value is not included in your answer. On a number line, this will be represented by an open circle.
S+9>24 subtract 9 from either side to isolate the variable you're solving for.
S>15
Apratim R.
Hi Raymond, here's a note about the line "the sign is flipped when dividing theequation". It doesn't affect the answer to this particular question, but is useful to know in general.
The direction (> or <) of an inequality is flipped when multipying or dividing by a negative number, and is unchanged when multiplying or dividing by a positive number. (So it's only the positivity/negativity of the multiplier or divider that decides whether or not there is flipping.)
10/04/12