Lissette's age is 3 years less than twice the age of her sister Francesca. Lissette is 13. Write an equation that can be used to find Francescas age, f.

2f-3=13

Step-by-step explanation:

2f -3 = 13

   +3 +3

2f = 16

/2    / 2

f=8

i think is 3 and 6. this took me 10 min to think.hope to and hope that my answer is brainliest.(follow me )

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)