1) (f-35)+26=47
f-35=47-26
f-35=21
f=35+21
f=56
2)(k-96)-48=21
k-96=48+21
k-96=69
k=96+69
k=164
3)879-(458+h)=231
458+h=879-231
458+h=648
h=648-458
h=190
4)951-(r-354)=882
r-354=951-882
r-354=69
r=354+69
r=423
5)549-(425-b)=488
425-b=549-488
425-b=61
b=425-61
b=364