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solving equations and inequalities progress: the movement of the progre…

Question

solving equations and inequalities
progress:
the movement of the progress bar may be uneven because questions can be worth more or less including zero depending on your answer
solve for ( a ).
( 3a + 2 > \frac{3a - 6}{3} )
( \bigcirc a > 0 )
( \bigcirc a < 0 )
( \bigcirc a > -2 )
( \bigcirc a < -2 )

Explanation:

Step1: Eliminar el denominador

Multiplicar ambos lados de la desigualdad \( 3a + 2 > \frac{3a - 6}{3} \) por 3 para eliminar el denominador.
\( 3(3a + 2) > 3a - 6 \)

Step2: Expandir el lado izquierdo

Expandir \( 3(3a + 2) \): \( 9a + 6 > 3a - 6 \)

Step3: Restar \( 3a \) de ambos lados

\( 9a - 3a + 6 > -6 \)
\( 6a + 6 > -6 \)

Step4: Restar 6 de ambos lados

\( 6a > -6 - 6 \)
\( 6a > -12 \)

Step5: Dividir por 6

Dividir ambos lados por 6: \( a > \frac{-12}{6} \)
\( a > -2 \)

Answer:

\( a > -2 \) (la opción correspondiente es "a > -2")