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Resposta :

Resposta:

letra (A) 9

Explicação passo-a-passo:

[tex]3x - 8 = 19 \\ 3x = 19 + 8 \\ 3x = 27 \\ x = \frac{27}{3} \\ x = 9[/tex]

Resposta:

x=9 então 3×9-8=19

Explicação passo-a-passo:

espero ter ajudado