1) (х+38)-59=26
х+38-59=26
х-21=26
х=26+21
х=47
2) (f-35)+26=47
f-35+26=47
f-9=47
f=47+9
f=56
3) (k-96)-48=21
k-96-48=21
k-144=21
k=21+144
k=165
4) 879-(458+h)=231
879-458-h=231
421-h=231
-h=231-421
-h= -190
h= -190×(-1)
h=190
5) 951-(r-354)=882
951-r+354=882
1305-r=882
-r=882-1305
-r= -423
r= -423×(-1)
r=423
6) 549-(425-b)=488
549-425+b=488
124+b=488
b=488-124
b=364
