To solve this problem we need to isolate the variable "x" on the left side. The first step is to change the "-2x" to the left side by changing its signal and changing the "+13" to the right side by changing its signal aswel.
The variable on the left side is negative, we need to make it posite. To do that we will have to multiply both sides by "-1", whenever that happens we need to invert the inequality signal.
