The sum of negative eighteen and a number is eleven. What is the number? Which equation could be used to solve the problem?

-x + 18 = 11
x + 18 = 11
18 - x = 11
x - 18 = 11

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)

answer: 0,6

step-by-step explanation:

this would make it the y intercept.