Răspuns:
Explicație pas cu pas:
n×8=n+7/2 8n-n=7/2 7n=7/2 ⇒n=1/2
Notam cu x numarul cautat
[tex]\it x\cdot8 = \dfrac{3\cdot2+1}{2}+x\\\\\\8x = \dfrac{7+2x}{2}\Rightarrow8x\cdot2=7+2x \Rightarrow16x=7+2x\Rightarrow 14x = 7\Rightarrow\boxed{\it x=\dfrac{1}{2} }[/tex]
Raspuns:
[tex]x=\dfrac{1}{2}[/tex]
