(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

F : R-{1/3} ---> R-{0}

F(x) = 1/(3x-1)

to show R-{0} [tex]\subseteq[/tex] image of F

for any y in R-{0}, if we try to solve y=1/(3x-1), we find x=(1+y)/3y,

F((1+y)/3y)=y

2. Relevant equations

R is real number

3. The attempt at a solution

so, if (1+y)/3y are the values for x in R-{0} such that F((1+y)/3y)=y

but i don't understand, how is that showing R-{0} [tex]\subseteq[/tex] image of F

explain to me please

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# Subset math help

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