12.5-(3.8x-1.3x)=11.23
12.5 – 3.8x + 1.3x = 11.23
– 3,8x + 1,3x = 11,23 – 12,5
-2.5x = -1.27
x = 0.508
12.5-(3.8x-1.3x)=11.23
12.5 – 3.8x + 1.3x = 11.23
– 3,8x + 1,3x = 11,23 – 12,5
-2.5x = -1.27
x = 0.508