sundaywallace6948 sundaywallace6948

21-12-2018
Mathematics

contestada

If x = 5 and y = -4, evaluate this expression:

(-2x + 10) - (-6x + 5y + 12) + (x + 8y - 16)
A) -5
B) 0
C) 5
D) 10 what the answer

Respuesta :

catybearm74014 catybearm74014

21-12-2018

The answer is**** A) -5

Answer Link

tramserran tramserran

21-12-2018

Answer: (A) -5

Step-by-step explanation:

(-2x + 10) - (-6x + 5y + 12) + (x + 8y - 16) ; x = 5, y = -4

= [-2(5) + 10] - [-6(5) + 5(-4) + 12] + [(5) + 8(-4) - 16]

= [-10 + 10] - [-30 - 20 + 12] + [5 - 32 - 16]

= (0) - (-38) + (-43)

= 0 + 38 - 43

= -5

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