Move all terms not containing x to the right side of the inequality. You should get x<3
This is what your line should look like. The circle will be open because the is not line under the less than sign. And it will be going toward the left because it is less than greater than is graphed to the right.
The answer is (-2,-10) you just need to plug them in.
3
10/100=x/30
Cross multiply
100x=300
Divide each side by 100
X=3