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rezolvati in Q 1 minos 1pe 5x egal 0.5

Răspuns :

[tex] 1 - \frac{1}{5} \times x = 0.5[/tex]

[tex]1 - \frac{x}{5} = \frac{5}{10} [/tex]

[tex]1 - \frac{x}{5} = \frac{1}{2} [/tex]

[tex] \frac{10}{10} - \frac{2x}{10} = \frac{5}{10} [/tex]

[tex]10 - 2x = 5[/tex]

[tex] - 2x = 5 - 10[/tex]

[tex] - 2x = - 5 \: | \times ( - 1)[/tex]

[tex]2x = 5[/tex]

[tex]x = \frac{5}{2} [/tex]