Question 1062769
(9/5) * x +32 = (x-32) * (5/9)
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9x/5 +32 = 5x/9 -160/9
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45 is the least common multiple, multiply both sides of = by 45
:
81x +1440 = 25x -800
:
56x = -2240
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x = -40
:
-40 degrees Fahrenheit = -40 Centigrade
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