(741-567+109)+(564-199)+348=283+365+348=996
780:(x-24)=90-28
780:(x-24)=62
x-24=780:62
x-24=12 18/31
x=24+12 18/31
x=36 18/31
(1-3i)/(i-2)+(4i+1)/(3i-1)=[(1-3i)(-i-2)/{(-i-2)(i-2)}]+[(4i+1)(-3i-1)/{(3i-1)(-3i-1)}]=
=(-i-3-2+6i)/5+(12-3i-4i-1)/10 = (5i-5)/5+(11-7i)/10=(10i-10+11-7i)/10=(3i+1)/10=
=1/10+ (3/10)i