(15x 19 - x - 0,15 ) : 0,25 = 15 : 0,25
( 285 - x - 0,15) x 4 = 15 x 4
(285 -x - 0,15 ) x 4 = 60
285 - 0,15 - x = 60 : 4
285 - 0,15 -x = 15
284,85 - x = 15
x= 284,85 - 15
x= 269,85
2\(\dfrac{3}{4}\) - x = \(\dfrac{1}{3}\times\dfrac{6}{2}\)
\(\dfrac{11}{4}\) - x = 1
x= \(\dfrac{11}{4}-1\)
x= \(\dfrac{7}{4}\)