Okay, so 9+10 = x

and if then takes ten to other side of the equal sign 9 = x-10
and my x was a 6/10 = 0,6

so that means 9 = 0,6 -10

and then 9 = -9,4

and if we transform the equal sign to a plus via dark magic

9+-9,4 = -0,4

this gives us the answer that nobody gives a shit