Question

which of the temperature will read the same value on Celsius and Fahrenheit scales.

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Answer 1

Answer:

-40 degrees is same on both the scales

Answer 2

Answer:

-40

Explanation:

Let such value be x

$xf = \frac{9xc}{5} + 32 \\ \\ \\ x = \frac{9x}{5} + 32 \\ \\ \\ x = \frac{9x + 160}{5} \\ \\ \\ 5x = 9x + 160 \\ \\ \\ - 4x = 160 \\ \\ \\ x = - 40$

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