The way I was taught to solve an equation like 95-x=26 was to isolate the variable (x) by moving terms around on each side of the = sign. When an term is moved from one side of the equal to the other it changes sign
ie
95 - x = 26 95 = 26 + x 95 - 26 = x 69 = x or x = 69
Just another method - always more than one way to skin a cat