Question

Daca marim un numar cu 3pe2,se obtine 7pe3.Aflati numarul respectiv.

Answer 1

$\it x+\dfrac{3}{2}=\dfrac{7}{3} \Rightarrow x=\dfrac{^{2)}7}{\ 3}-\dfrac{^{3)}3}{\ 2}=\dfrac{14-9}{6}=\dfrac{5}{6}$

Answer 2

Răspuns:

5/6

Explicație pas cu pas:

a+3/2=7/3

-------------------------

a=?

rezolvare:

a=7/3-3/2

amplificam:

7/3ori2=14/6

3/2ori3=9/6

a=14-9/6

a=5/6