Respuesta :

Answer:

x=4

Step-by-step explanation:

3(x-1)=9

3x-3=9

3x=9+3

3x=12

x=4

Answer:

x=4

Step-by-step explanation:

[tex]3(x - 1) = 9[/tex]

[tex]x - 1 = 9 \div 3[/tex]

[tex]x - 1 = 3[/tex]

[tex]x = 3 + 1[/tex]

[tex] x = 4[/tex]

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