Question

a+b=48
a:b= 3 rest 4.
a=?
b=?

Answer 1

a:b=3 rest 4 => a=3b+4
Inlocuim pe a in prima relatie: 3b+4+b=48 <=> 4b+4=48 <=> 4b= 44 <=> b=11
a=3x11+4=33+4=37

Answer 2

a/b=3 rest 4⇒ 3b=a+4, a=3b-4
a+b=a+(a+4) :3
48=3b-4+(3b-4)/3......amplificam totul cu 3
144=9b-12+3b-4
160=12b
b=13,(3)
144=9b-12+3b-4=3a+a
144=4a
a=36