Question

a+b=48
a:b=3 rest 2

Answer 1

a+b=48
a=3b+2
3b+2+b=48
4b=46
a=46:4
a=11,5
11,5+b=48
b=48- 11,5
b=36,5

Answer 2

Din teorema impartirii cu rest, obtinem ca:
$a=3b+2$
Deci, $3b+2+b=48$
$4b=46$
$\boxed {b=11.5}$

$\boxed {a=36.5}$