Х+х-9-х+14=86

To solve the equation, you need to combine like terms first. The equation is:

x + x - 9 - x + 14 = 86

Combine the x terms:

x + x - x = 2x - x = x

Now combine the constant terms:

-9 + 14 = 5

The equation then becomes:

x + 5 = 86

Now, isolate the variable x by subtracting 5 from both sides of the equation:

x + 5 - 5 = 86 - 5 x = 81

The solution to the equation is x = 81.