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vekshin1
3 years ago
14

And this one please.

Mathematics
1 answer:
zhenek [66]3 years ago
7 0

Answer:

x = (3 + 8y) / (y - 1)

Step-by-step explanation:

y = (x + 3) / (x - 8)

Make x the subject

y = (x + 3) / (x - 8)

Cross product

y * (x - 8) = (x + 3)

xy - 8y = x + 3

xy - x = 3 + 8y

Factorize the left hand side of the equation

x( y - 1) = 3 + 8y

Divide both sides by (y - 1)

x = (3 + 8y) / (y - 1)

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"If you subtract 17 from my number and multiply the difference by negative 4​, the result is negative 92​.

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distribute

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divide each side by -4

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