Respuesta:
6
Explicación paso a paso:
3x=18
x=6
[tex]8x+12−4x=x+30 \\ 4x+12=x+30 \\ 4x+12−x=30 \\ 3x+12=30 \\ 3x=30−12 \\ 3x=18 \\ x = \frac{3}{18} \\ x= 6[/tex]
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Respuesta:
6
Explicación paso a paso:
3x=18
x=6
[tex]8x+12−4x=x+30 \\ 4x+12=x+30 \\ 4x+12−x=30 \\ 3x+12=30 \\ 3x=30−12 \\ 3x=18 \\ x = \frac{3}{18} \\ x= 6[/tex]