Question 658886
{{{3/3x+1/x+4=10/7x}}}

{{{3/3x+1/x+4=10/7x}}}..... find common denominator on left side...it is {{{3x}}}


{{{3+1*3+4*3x)/3x=10/7x}}}


{{{3+3+12x)/3x=10/7x}}}


{{{6+12x)/3x=10/7x}}}....cross multiply


{{{6+12x)7x=10*3x}}}


{{{42x+84x^2=30x}}}


{{{42x+84x^2-30x=0}}}


{{{84x^2+12x=0}}}


{{{12x(7x+1)=0}}}

solutions:


if {{{12x=0}}}...=>........{{{x=0}}}

if {{{7x+1)=0}}}..=>.....{{{7x=-1}}} =>.....{{{x=-1/7}}}


 {{{ graph( 600, 600, -2, 2, -3, 5, 84x^2+12x) }}}