Question

me ajudem, pleaseeee.

Answer 1

C/5=(F-32):9
C/5=(86-32):9
C/5=54/9
C/5=6
C=30°

C/5=(23-32):9
C/5=-9/9
C/5=-1
C=-5°

Logo:
(86-23)°F=[(30-(-5)]°C
(86-23)°F=[30+5]°C
(86-23)°F=35°C

Ou
(86-23)°F=63°F
Logo:
C=63/1,8
C=35°