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@Trombolistul mă poți ajuta ? merci anticipat.

[tex]5 \times \frac{x + 2}{5} + \frac{x - 5}{2} = 0.3[/tex]

succes !


Răspuns :

[tex]5 \times \frac{x + 2}{5} + \frac{x - 5}{2} = 0,3 \\ \\ x + 2 + \frac{x - 5}{2} = \frac{3}{10} \\ \\ 10x + 10 \times 2 + 10 \times \frac{x - 5}{2} = 10 \times \frac{3}{10} \\ \\ 10x + 20 + 5(x - 5) = 3 \\ \\ 10x + 20 + 5x - 25 = 3 \\ \\ 15x - 5 = 3 \\ \\ 15x = 3 + 5 \\ \\ 15x = 8 \\ \\ 15x : 15 = 8 : 15 \\ \\ x = 8 : 15 = \frac{8}{15} [/tex]