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alexira [117]
3 years ago
9

F(x) = -5x +8(7-x) find x such that f(x) =160

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
7 0

Answer:

Step-by-step explanation:

f(x) = -5x + 8(7 - x)......when f(x) = 160

160 = -5x + 8(7 - x)

160 = -5x + 56 - 8x

160 - 56 = -5x - 8x

104 = - 13x

-104/13 = x

-8 = x <====

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