Question

Solve for x in the proportion x over the quantity x plus 12 equals 1 over the quantity x minus 1.

x ≈ −6.02 and x ≈ 5.02

x ≈ −3.46 and x ≈ 3.46

x ≈ −3.14 and x ≈ 4.14

x ≈ −2.61 and x ≈ 4.61

Answer 1

\[\frac{x}{x+12}=\frac{1}{x-1}\] like that?

Answer 2

which one do you think it is

Answer 3

lets start again
cross multiply get
\[x(x-1)=x+12\]
\[x^2-x=x+12\]
\[x^2-2x-12=0\]

Answer 4

now solve for x get
\[x=1-\sqrt{13}\] or
\[x=1+\sqrt{13}\]

Answer 5

last one is your answer