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10 February, 08:07

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

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  1. 10 February, 08:27
    0
    -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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