13/6-11/15x=0.15

x=

1 answer

13/6 - 11/15x = 0.15.
-11/15x = 0.15-13/6,
-11/15x = 15/100-13/6,
-11/15x = 3/20-13/6,
-11/15x = 9/60-130/60 = -121/60,
Invert both sides:
-15x/11 = -60/121,
-15x*121 = 11*(-60)
-1815x = -660,
X = -660/-1815 = 44/121.