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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