diketahui rumus fungsi f = 8/5-x. tentukan nilai x jika f(x) = 2

2=8/5-x
x=8/5-2
x=8/5-2/1
x=16/10-20/10
x=-4/10
x= -2/5

f(x) = 8/5 - x
2 = 8/5 - x
-x = 2 x 5/8
-x = 5/4
x = -5/4


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