Explicación paso a paso:
Planteamos la ecuación
[tex]3x + 8 = 30[/tex]
[tex]3x = 30 - 8[/tex]
[tex]3x = 22[/tex]
[tex]x = \frac{22}{3} [/tex]
Comprobamos !
[tex] 3 \times \frac{22}{3} + 8 = 30[/tex]
[tex] \frac{66}{3} + 8 = 30[/tex]
[tex]22 + 8 = 30[/tex]
[tex]30 = 30[/tex]
Saludos
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Explicación paso a paso:
hole °
Planteamos la ecuación
[tex]3x + 8 = 30[/tex]
[tex]3x = 30 - 8[/tex]
[tex]3x = 22[/tex]
[tex]x = \frac{22}{3} [/tex]
Comprobamos !
[tex] 3 \times \frac{22}{3} + 8 = 30[/tex]
[tex] \frac{66}{3} + 8 = 30[/tex]
[tex]22 + 8 = 30[/tex]
[tex]30 = 30[/tex]
Saludos