А) 13280+x=50000
x= 50000-13280
x=36720
y-240098=157943
y=240098+157934
y=398032
195200-z=58060
z=195200-58060
z=137140
б)(340754-k):6=23800
340754-k=23800*6
340754-k=142800
k=340754-142800
k=197954
m*80=32965+31835
m*80=64800
m=64800:80
m=810
70*(n:200)=16450
n:200=16450:70
n:200=235
n=235*200
n=47000