Răspuns :
a + b= 89
a : b= 3 rest 1
a= 3b+ 1
3b + 1+ b= 89
4b +1= 89
4b = 89- 1
4b = 88
b= 88: 4
b= 22
=> a= 89- 22
=> a= 67
a : b= 3 rest 1
a= 3b+ 1
3b + 1+ b= 89
4b +1= 89
4b = 89- 1
4b = 88
b= 88: 4
b= 22
=> a= 89- 22
=> a= 67
[tex]A+B=89 \\
A:B=3~r~1 \Rightarrow A=3B+1 \\
A.|^{\underline{.........................................................................}}| \\
B.|^{\underline{.....................}}|^{\underline{.....................}}}|^{\underline{.....................}}|^\underline{..1..}}| \\
Inlocuim: \\
3B+1+B=89 \\
4B=88 \\
\boxed{B=22} \\
A=89-22 \\
\boxed{A=67}[/tex]