Răspuns :
a+b=56
a/b=3/4 => a=3b/4
3b/4+b=56
amplificam cu 4=> 3b+4b=56*4=> 7b=224 => b=32
a=56-32=24
a+b=56
a=56-b
[tex] \frac{a}{b}= \frac{3}{4} => \frac{56-b}{b}= \frac{3}{4}=>3b=224-4b=>7b=224=>b= 32=> \\ a=56-32=>a=24[/tex]
a=56-b
[tex] \frac{a}{b}= \frac{3}{4} => \frac{56-b}{b}= \frac{3}{4}=>3b=224-4b=>7b=224=>b= 32=> \\ a=56-32=>a=24[/tex]