F= 9C/5 + 32
find C, if F = 30° and find F, if C is 30°
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Step-by-step explanation:
F=9C/5+32
I) if f =30,
30=9C/5+32
30+32=9C/5
-2*5=9C
9C=-10
C=-10/9
C=-1.11
II) if C=30,
F=9C/5+32
F=(9*30/5)+32
F=54+32
F=86
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