Question

suma a doua nr este 311 impartind cele 2 nr obtinem cat 7 si rest 15

Answer 1

a=/--/--/--/--/--/--/--/+15
b=/--/
b=(311-15):8=296:8=37.
a=37·7+15=259+15=274
Verificare:
274+37=311

Answer 2

a + b = 311
a : b = 7 rest 15
a = 7 b + 15
a /...../..../...../...../...../...../...../..+ 15
b /...../
cat reprezinta segmentele egale?
311 - 15 = 296
cat este un segment?
296 : 8 = 37
a = 7 x 37 + 15 = 259 + 15 = 274
b = 37 x 1
b = 37

algebric
a + b = 311
a = 7b + 15
7b + 15 + b = 311
8b = 311 - 15
8b = 296
b = 296 : 8
b = 37
a = 7 x 37 + 15
a = 259 + 15
a = 274
verificam
274 + 37 = 311