What is equal to

2x+8-22x=-2

I think you're asking for what the x value is?

to find this you have to have the variable (s) in this case, x, on one side of the equation.

you need to combine like terms and also subtract 8.

2x+8-22x=-2

-8

2x-22x=-10

Combine like terms:

-20x=-10

Now divide by - 20:

x=1/2

Your solution is:

x=1/2