Question

What is the answer to x in this equation K(x)=3/2x-1;k(x)=-4

Answer 1

x = - 2

Explanation:

Given k(x) =
`(3)/(2)` x - 1 and k(x) = - 4, then equate right sides, that is

`(3)/(2)` x - 1 = - 4 ( add 1 to both sides )

`(3)/(2)` x = - 3 ( multiply both sides by 2 to clear the fraction )

3x = - 6 ( divide both sides by 3 )

x = - 2

Answer 2

-1/3

Explaination :

K(x) = 3/2x - 1

K(x) = -4

K(-4) = 3 / 2(-4) - 1

K = 3 / -8 - 1

K = 3 / -9

K =

`- \frac {1}{3}`