Explicación paso a paso:
[tex]3x + 3 - 4 = 8 \\ 3x - 1 = 8 \\ 3x = 8 + 1 \\ 3x = 9 \\ 3 \\ x = \frac{9}{3} \\ x = 3[/tex]
[tex]6x + 5 = 2x + 1 \\ 6x - 2x = 1 - 5 \\ 4x = - 4 \\ x = - 1[/tex]
[tex]8x - 64 = 0 \\ 8x = 64 \\ x = \frac{64}{8} \\ x = 8[/tex]
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Explicación paso a paso:
[tex]3x + 3 - 4 = 8 \\ 3x - 1 = 8 \\ 3x = 8 + 1 \\ 3x = 9 \\ 3 \\ x = \frac{9}{3} \\ x = 3[/tex]
[tex]6x + 5 = 2x + 1 \\ 6x - 2x = 1 - 5 \\ 4x = - 4 \\ x = - 1[/tex]
[tex]8x - 64 = 0 \\ 8x = 64 \\ x = \frac{64}{8} \\ x = 8[/tex]