#### Answer

30° C

#### Work Step by Step

86° F
Given formula
C = $\frac{5}{9}$(F-32)
Step 1: Substitute the value of F=86 in the given expression
C = $\frac{5}{9}$(86-32)
Step2: Solve the bracket (86-32)
C = $\frac{5}{9}$(54)
Step 3: Divide 54 by 9 and multiply the result with 5
C = 5(6)
C = 30
Therefore the result is 30° C