Răspuns :
(a+b):2=149
a+b=298
a:b=7 rest 2 ⇒a=7b+2
7b+2+b=298
8b=296
b=37
a=261
a+b=298
a:b=7 rest 2 ⇒a=7b+2
7b+2+b=298
8b=296
b=37
a=261
(a+b)/2=149
a+b=149×2=298⇒a+b=298
a:b=7 r2 ⇒conform teoremei de impartire cu rest ⇒a=7b+2
a+b=298 si a=7b+2 ⇒7b+2+b=298 ⇒8b=296⇒b=296:8⇒b=37
b=37 a=7b+2⇒a=7×37+2⇒b=261
a=261
verificare
(a+b)/2=149
(261+37):2=149
298:2=149
149=149
a+b=149×2=298⇒a+b=298
a:b=7 r2 ⇒conform teoremei de impartire cu rest ⇒a=7b+2
a+b=298 si a=7b+2 ⇒7b+2+b=298 ⇒8b=296⇒b=296:8⇒b=37
b=37 a=7b+2⇒a=7×37+2⇒b=261
a=261
verificare
(a+b)/2=149
(261+37):2=149
298:2=149
149=149