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Always1
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in Q solutia ecuatiei 4 1/2 -x=2 1/3 este...

Răspuns :

Abc112
[tex]4 \frac{1}{2} - x = 2 \frac{1}{3} [/tex]

[tex] \frac{4 \times 2 + 1}{2} - x = \frac{2 \times 3 + 1}{3} [/tex]

[tex] \frac{8 + 1}{2} - x = \frac{6 + 1}{3} [/tex]

[tex] \frac{9}{2} - x = \frac{7}{3} \: | \times 6[/tex]

[tex]27 - 6x = 14[/tex]

[tex] - 6x = 14 - 27[/tex]

[tex] - 6x = - 13 \: | \times ( - 1)[/tex]

[tex]6x = 13[/tex]

[tex]x = \frac{13}{6} \: \in \: \mathbb{Q}[/tex]

[tex]4 \frac{1}{2} - x = 2 \frac{1}{3} \\ \frac{9}{2} - x = \frac{7}{3} \\ - x = \frac{7}{3} - \frac{9}{2} \\ - x = - \frac{13}{6} | \times ( - 1) \\ x = \frac{13}{6} [/tex]