If f(x) =7x-4 ,then find f(z-2)
Plz help..with the explanation

7z-18

Step-by-step explanation:

f(z-2) means to plug (z-2) in the place of x in this function. This means that f(z-2)= 7(z-2) - 4 = 7z-14-4=7z-18. Hope this helps!

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)