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15. $3.2x + 6.5 - 2.4x - 4.4$

Question

  1. $3.2x + 6.5 - 2.4x - 4.4$

Explanation:

Step1: Agrupar términos con $x$

$3.2x - 2.4x + 6.5 - 4.4$

Step2: Simplificar términos con $x$

$(3.2 - 2.4)x + 6.5 - 4.4 = 0.8x + 6.5 - 4.4$

Step3: Simplificar términos constantes

$0.8x + (6.5 - 4.4) = 0.8x + 2.1$

Answer:

$0.8x + 2.1$