12x-5=13x-9????

To solve for x, we need to isolate x on one side of the equation.

12x - 5 = 13x - 9

First, let's get rid of the variable on the right side by subtracting 13x from both sides:

12x - 5 - 13x = 13x - 9 - 13x
-x - 5 = -9

Next, let's isolate x by adding 5 to both sides:

-x - 5 + 5 = -9 + 5
-x = -4

Finally, multiply both sides by -1 to solve for x:

x = 4

Therefore, x = 4.

12x - 5 = 13x - 9
-x = -4
x = 4