Question

Suatu fungsi f(t)=4-t/t-1 bernilai -3/4 untuk t sama dengan

Answer 1

F(t)=> (4-t)/(t-1) = -3/4
4-t = -3/4 . (t-1)  -->masing-masing ruas dikali 4
4(4-t) = -3(t-1)
16-4t = -3t+3
16-3 = 4t-3t
t = 13

Answer 2

-3/4 = (4-t)/(t-1)
(perkalian silang)

-3(t-1) = 4(4-t)
-3t + 3 = 16 - 4t
-3t + 4t = 16 - 3
t = 13