The answer is: 17 .
___________________________________
Explanation:
____________________________________________________
2x - 9 = 25 ;
Add "9" to each side of the equation;
2x - 9 + 9 = 25 + 9 ; to get:
___________________________________
2x = 34 ;
___________________________________
Now, divide EACH SIDE of the equation by "2" ; to isolate "x" on one side of the equation; and to solve for "x" ;
___________________________________
2x / 2 = 34 / 2 ;
___________________________________
x = 17 .
___________________________________
