Question

dada a função f(x-3)=5x-2 calcule. f(1)+f(3)

Answer 1

f(x-3)=5x-2

f(1)= x-3=1
       x= 4
f(1) = 5.4-2
f(1)= 20- 2
f(1)= 18

f(3) = x-3 =3
        x=6
f(3) 5.6 -2
f(3) 30-2
f(3) = 28
                 
               f(1) + f(3) = 18 + 28 = 46