[tex] \frac{x}{2} \: - \: 1 \: = \: \frac{213}{3} [/tex]
[tex]3x \: - \: 6 \: = \: 426[/tex]
[tex]3x \: = \: 426 \: + \: 6[/tex]
[tex]3x \: = \: 432[/tex]
[tex] \boxed{ \bold{x \: = \: 144}}[/tex]
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Verified answer
Planteamos:
[tex] \frac{x}{2} \: - \: 1 \: = \: \frac{213}{3} [/tex]
Resolvemos:
[tex] \frac{x}{2} \: - \: 1 \: = \: \frac{213}{3} [/tex]
[tex]3x \: - \: 6 \: = \: 426[/tex]
[tex]3x \: = \: 426 \: + \: 6[/tex]
[tex]3x \: = \: 432[/tex]
[tex] \boxed{ \bold{x \: = \: 144}}[/tex]
R// El número es 144
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