Question

a-b=1972 si a:b= 74 rest 1

Answer 1

a:b=74,r=1⇒a=74b+1
a-b=1972
74b+1-b=1972
73b=1971
b=27

a-27=1972
a=1999

Answer 2

a-b=1972
a:b=74 rest 1⇒a=b×74+1=74b+1
a=74b+1  si
a-b=1972⇒74b+1-b=1972
73b=1972-1
73b=1971
b=27
a=74b+1=1998+1=1999
a=1999
verificare:
a-b=1972  1999-27=1972  deci 1972=1972