Given the function f(x)=3x−5f(x) = 3x - 5f(x)=3x−5, find the input xxx such that f(x)=10f(x) = 10f(x)=10.
x=5x = 5x=5
x=3x = 3x=3
x=15x = 15x=15
x=53x = \frac{5}{3}x=35