Question

Aflati numarul care indeplineste conditiile :adunat cu 2 si impartind suma obtinuta la diferenta dintre el si 2 se obtine 3.

Answer 1

$(x + 2) \div (x - 2) = 3 \\ \frac{x + 2}{x - 2} = 3 \\ (x + 2) \times \frac{x + 2}{x - 2} = 3(x - 2) \\ x + 2 = 3(x - 2) \\x + 2 = 3x - 6 \\ x - 3x = - 6 - 2 \\ - 2x = - 8 \\ x = - 8 \div ( - 2) \\ x = 4$

Answer 2

x+2/x-2=3
x+2=3(x-2)
x+2=3x-6
2x=8
x=8/2=4
verificare 4+2/4-2=6/2=3