64*b-59=389; 398+6309:k=1099; (x*8-695) : 5=21; 26 * (x+427) = 15756; 6750: (y-39) = 54; 328 - (y+6) : 4=228; 786*X=200820-8250; (238780+1892) : x=368; 12240:x=306*5; (9000-3726) : x=9.

64*b-59=389

64*b=389+59

64*b=448

b=448:64

b=7

64*7-59=389

389=389

6309:k=1099-398

6309:k=701

k=6309:701

k=9

398+6309:9=1099

1099=1099

x*8-695=21*5

x*8-695=105

x*8=105+695

x*8=800

x=800:8

x=100

(100*8-695) : 5=21

21=21

x+427=15756:26

x+427=606

x=606-427

x=179

26 * (179+427) = 15756

15756=15756

y-39=6750:54

y-39=125

y=125+39

y=164

6750: (164-39) = 54

54=54

(y+6) : 4=328-228

(y+6) : 4=100

y+6=100*4

y+6=400

y=400-6

y=394

328 - (394+6) : 4=228

328-400:4=228

328-100=228

228=228

786*X=192570

X=192570:786

X=245

786*245=192570

192570=192570

240672:X=368

X=240672:368

X=654

240672:654=368

368=368

12240:X=1530

X=12240:1530

X=8

12240:8=1530

1530=1530

5274:X=9

X=5274:9

X=586

5274:586=9

9=9