Question

Solve the equation. 6 - x - x = 18

Answer 1

6-x-x=18
-x-x=18-6
-x-x=12
-2x=12
x=12/-2
x=-6
Check: 6- (-6)- (-6) remember - - = +
So basically it's 6+6+6=18

Answer 2

X = -6
6 - -6 - -6 = 18