Respuesta :

Answer:

Simplified Expression: 14n - 29

Work

2n-9-5(-2.4n+4)

2n-9+12n-20

14n-9-20

12n-29

14n - 29

The difference as in the expression is; 14n - 29

To determine the difference;

We must first open the second parenthesis by multiplying through by its coefficient as follows;

  • 5(−2.4n+4) = -12n +20.

Afterwards; we have;

  • (2n−9)−(-12n +20)

  • = 2n -9 + 12n -20

= 14n - 29

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