Răspuns :
Răspuns:
a+b=56
a:b=5(rest 2)
a=5b+2
5b+2+b=56
6b+2=56
6b=56-2
6b=54
b=54:6
b=9
a+b=56
a+9=56
a=56-9
a=47
Răspuns:
[tex]a+b = 56[/tex]
[tex]\green{a:b = 5\, ; \, r=2 \Rightarrow a=5 \cdot b +2\; \mathsf{(teorema\; imp.\; cu \;rest) }} \\[/tex]
[tex]a+b = 56 \Rightarrow 5b+2+b=56[/tex]
[tex]6b+2=56\Rightarrow 6b=56-2 \Rightarrow \red{ b = \dfrac{54}{6} =9}[/tex]
[tex]a=5b+2=5 \cdot 9 + 2 = 45+2 \Rightarrow \red{ a = 47}[/tex]