starburst51901 starburst51901

05-07-2019
Mathematics

contestada

if a+b+c=-2 and x+y=-9 what is 9x + 4b + 9y +4c + 4a

Respuesta :

05-07-2019

Answer:

-89

Step-by-step explanation:

9x + 4b + 9y +4c + 4a (9x+9y)+(4a+4b+4c) =9(x+y)+4(a+b+c)

but : a+b+c = -2 and x+y = -9

9x + 4b + 9y +4c + 4a = 9(-9)+4(-2) = - 81 -8 =-89

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