Respuesta :

ZJSG09112007

Answer:

  1. 72
  2. 24

Step-by-step explanation:

[tex]x = 4\\ y = -1 \\ z= -3\\2x(3y -4z)\\= 2(4) [3(-1)-4(-3)] = 8(-3+12)\\=8 (9)\\\\=72\\\\3(5x + 4z)\\3[5(4)+4(-3)]\\3(20-12)\\3(8)\\= 24[/tex]

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