Question

F(x) = 5/2x-1 and f(x) = -2,find x​

Answer 1

x = -
`(2)/(5)`

Explanation:

given f(x) =
`(5)/(2)` x - 1 and f(x) = - 2 , then equate right sides

`(5)/(2)` x - 1 = - 2 ( add 1 to both sides )

`(5)/(2)` x = - 1 ( multiply both sides by 2 to clear the fraction )

5x = - 2 ( divide both sides by 5 )

x = -
`(2)/(5)`