Question

2x + 1 => 5 or -3x > -9

Part 1: Solve the inequality above.
Part 2: Describe the graph of the solution.

Answer 1

2x + 1 => 5
2x => 4
x => 4/2
x => 2

-3x > -9
9 > 3x
9/3 > x
3 > x
x < 3

Answer 2

I don't do it how everyone else does it. I avoid dividing by a negative. Instead I add the negative containing the variable to both sides, then add the integer to both sides. I do that all in one step. Then continue solving.

Answer 3

you dont flip the symbol on x => 4/2?..

Answer 4

You only flip the symbols if you ever multiply or divide by a negative. I avoid doing that at all costs because I personally believe that approach to solving inequalities can be confusing.

Answer 5

ah ok thanks for your assistance