Răspuns :
a+b=69
a:b=7 rest 5
a |-----|----|---|---|----|---|----|...5
b |----|
8 segmente
69-5=64 noua suma
64:8=8 b
8x7+5=61 a
a:b=7 rest 5
a |-----|----|---|---|----|---|----|...5
b |----|
8 segmente
69-5=64 noua suma
64:8=8 b
8x7+5=61 a
[tex]a+b=69 \\a:b=7rest5[/tex]
[tex]a=7b+5 \\ Inlocuim: \\ 7b+5+b=69 \\ 8b+5=69 \\ 8b=69-5 \\ 8b=64 \\ b=64:8 \\ b=8 \\ a=7*8+5=56+5=61. \\ Verificare:61+8=69.[/tex]
[tex]a=7b+5 \\ Inlocuim: \\ 7b+5+b=69 \\ 8b+5=69 \\ 8b=69-5 \\ 8b=64 \\ b=64:8 \\ b=8 \\ a=7*8+5=56+5=61. \\ Verificare:61+8=69.[/tex]