0.26-0.5x=0.25x-0.1
0.26-0.5x=0.25x-0.1 multiply through by 100 to clear the decimals
26 - 50x = 25x -10 add 50x to both sides, add 10 to both sides
36 = 75x divide both sides by 75
x = 36/75 = 12/25