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Dimas [21]
3 years ago
6

3(x+5)=-4x+8. How many solutions

Mathematics
1 answer:
nirvana33 [79]3 years ago
6 0

Step-by-step explanation:

3(x + 5) = 4x + 8 \\ 3x + 15 = 4x + 8 \\ 15 - 8 = 4x - 3x \\ x = 7

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Can someone please help??
Vsevolod [243]

Answer:

let the number of cows = x

let the number of chickens = y

since there are 42 heads:

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Lorico [155]
Y = 30/20x + 20
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