Answer:
x=19
Step-by-step explanation:
You make your equation, 7x-8=6x+11.
Now you subtract 11 from both sides, so that now the equation is 7x-8-11=6x+11-11, or 7x-19=6x.
You need to now subtract 7x from both sides, so that it's 7x-19-7x=6x-7x, or -19=-x.
After that, you just reverse it so that it's positive, so x=19.
Unneeded Comment:
I hope you do well, and if you need a calculator, check out Symbolab!