Х+х-9-х+14=86

Let's solve the equation step by step:

\( x + x - 9 - x + 14 = 86 \)

First, we combine like terms (which is combining all the x terms):

\( (x + x - x) - 9 + 14 = 86 \)

Now, simplify the x terms:

\( 1x + 1x - 1x = x \)

\( x - 9 + 14 = 86 \)

Now, let's combine the numeric terms (-9 and 14):

\( x + (14 - 9) = 86 \)

\( x + 5 = 86 \)

To solve for x, subtract 5 from both sides of the equation:

\( x + 5 - 5 = 86 - 5 \)

\( x = 81 \)

So, the value of x that solves the equation is 81.